diff --git a/src/bitcoind.cpp b/src/bitcoind.cpp
index c6c1e9a47..13709340d 100644
--- a/src/bitcoind.cpp
+++ b/src/bitcoind.cpp
@@ -1,209 +1,209 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
 // Copyright (c) 2009-2019 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #if defined(HAVE_CONFIG_H)
 #include <config/bitcoin-config.h>
 #endif
 
 #include <chainparams.h>
 #include <clientversion.h>
 #include <compat.h>
 #include <config.h>
 #include <httprpc.h>
 #include <init.h>
 #include <interfaces/chain.h>
 #include <network.h>
 #include <node/context.h>
 #include <node/ui_interface.h>
 #include <noui.h>
 #include <shutdown.h>
 #include <util/ref.h>
 #include <util/strencodings.h>
 #include <util/system.h>
 #include <util/threadnames.h>
 #include <util/translation.h>
 
 #include <functional>
 
 const std::function<std::string(const char *)> G_TRANSLATION_FUN = nullptr;
 
 static void WaitForShutdown(NodeContext &node) {
     while (!ShutdownRequested()) {
         UninterruptibleSleep(std::chrono::milliseconds{200});
     }
     Interrupt(node);
 }
 
 //////////////////////////////////////////////////////////////////////////////
 //
 // Start
 //
 static bool AppInit(int argc, char *argv[]) {
     // FIXME: Ideally, we'd like to build the config here, but that's currently
     // not possible as the whole application has too many global state. However,
     // this is a first step.
     auto &config = const_cast<Config &>(GetConfig());
 
     RPCServer rpcServer;
 
     NodeContext node;
     util::Ref context{node};
 
     HTTPRPCRequestProcessor httpRPCRequestProcessor(config, rpcServer, context);
 
     bool fRet = false;
 
     util::ThreadSetInternalName("init");
 
     // If Qt is used, parameters/bitcoin.conf are parsed in qt/bitcoin.cpp's
     // main()
     SetupServerArgs(node);
     ArgsManager &args = *Assert(node.args);
     std::string error;
     if (!args.ParseParameters(argc, argv, error)) {
         return InitError(Untranslated(
             strprintf("Error parsing command line arguments: %s\n", error)));
     }
 
     // Process help and version before taking care about datadir
     if (HelpRequested(args) || args.IsArgSet("-version")) {
         std::string strUsage =
             PACKAGE_NAME " version " + FormatFullVersion() + "\n";
 
         if (args.IsArgSet("-version")) {
             strUsage += FormatParagraph(LicenseInfo()) + "\n";
         } else {
             strUsage += "\nUsage:  bitcoind [options]                     "
                         "Start " PACKAGE_NAME "\n";
             strUsage += "\n" + args.GetHelpMessage();
         }
 
         tfm::format(std::cout, "%s", strUsage);
         return true;
     }
 
     try {
         if (!CheckDataDirOption()) {
             return InitError(Untranslated(
                 strprintf("Specified data directory \"%s\" does not exist.\n",
                           args.GetArg("-datadir", ""))));
         }
         if (!args.ReadConfigFiles(error, true)) {
             return InitError(Untranslated(
                 strprintf("Error reading configuration file: %s\n", error)));
         }
         // Check for -chain, -testnet or -regtest parameter (Params() calls are
         // only valid after this clause)
         try {
             SelectParams(args.GetChainName());
-            node.chain = interfaces::MakeChain(node, config.GetChainParams());
         } catch (const std::exception &e) {
             return InitError(Untranslated(strprintf("%s\n", e.what())));
         }
 
         // Make sure we create the net-specific data directory early on: if it
         // is new, this has a side effect of also creating
         // <datadir>/<net>/wallets/.
         //
         // TODO: this should be removed once GetDataDir() no longer creates the
         // wallets/ subdirectory.
         // See more info at:
         // https://reviews.bitcoinabc.org/D3312
         GetDataDir(true);
 
         // Error out when loose non-argument tokens are encountered on command
         // line
         for (int i = 1; i < argc; i++) {
             if (!IsSwitchChar(argv[i][0])) {
                 return InitError(Untranslated(
                     strprintf("Command line contains unexpected token '%s', "
                               "see bitcoind -h for a list of options.\n",
                               argv[i])));
             }
         }
 
         if (!args.InitSettings(error)) {
             InitError(Untranslated(error));
             return false;
         }
 
         // -server defaults to true for bitcoind but not for the GUI so do this
         // here
         args.SoftSetBoolArg("-server", true);
         // Set this early so that parameter interactions go to console
         InitLogging(args);
         InitParameterInteraction(args);
         if (!AppInitBasicSetup(args)) {
             // InitError will have been called with detailed error, which ends
             // up on console
             return false;
         }
         if (!AppInitParameterInteraction(config, args)) {
             // InitError will have been called with detailed error, which ends
             // up on console
             return false;
         }
         if (!AppInitSanityChecks()) {
             // InitError will have been called with detailed error, which ends
             // up on console
             return false;
         }
         if (args.GetBoolArg("-daemon", false)) {
 #if HAVE_DECL_DAEMON
 #if defined(MAC_OSX)
 #pragma GCC diagnostic push
 #pragma GCC diagnostic ignored "-Wdeprecated-declarations"
 #endif
             tfm::format(std::cout, PACKAGE_NAME " starting\n");
 
             // Daemonize
             if (daemon(1, 0)) {
                 // don't chdir (1), do close FDs (0)
                 return InitError(Untranslated(
                     strprintf("daemon() failed: %s\n", strerror(errno))));
             }
 #if defined(MAC_OSX)
 #pragma GCC diagnostic pop
 #endif
 #else
             return InitError(Untranslated(
                 "-daemon is not supported on this operating system\n"));
 #endif // HAVE_DECL_DAEMON
         }
 
         // Lock data directory after daemonization
         if (!AppInitLockDataDirectory()) {
             // If locking the data directory failed, exit immediately
             return false;
         }
-        fRet = AppInitMain(config, rpcServer, httpRPCRequestProcessor, node);
+        fRet = AppInitInterfaces(node) &&
+               AppInitMain(config, rpcServer, httpRPCRequestProcessor, node);
     } catch (const std::exception &e) {
         PrintExceptionContinue(&e, "AppInit()");
     } catch (...) {
         PrintExceptionContinue(nullptr, "AppInit()");
     }
 
     if (!fRet) {
         Interrupt(node);
     } else {
         WaitForShutdown(node);
     }
     Shutdown(node);
 
     return fRet;
 }
 
 int main(int argc, char *argv[]) {
 #ifdef WIN32
     util::WinCmdLineArgs winArgs;
     std::tie(argc, argv) = winArgs.get();
 #endif
     SetupEnvironment();
 
     // Connect bitcoind signal handlers
     noui_connect();
 
     return (AppInit(argc, argv) ? EXIT_SUCCESS : EXIT_FAILURE);
 }
diff --git a/src/init.cpp b/src/init.cpp
index 3016c12b9..6f0c5edc1 100644
--- a/src/init.cpp
+++ b/src/init.cpp
@@ -1,3042 +1,3046 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
 // Copyright (c) 2009-2018 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #if defined(HAVE_CONFIG_H)
 #include <config/bitcoin-config.h>
 #endif
 
 #include <init.h>
 
 #include <addrman.h>
 #include <amount.h>
 #include <avalanche/avalanche.h>
 #include <avalanche/processor.h>
 #include <avalanche/validation.h>
 #include <banman.h>
 #include <blockdb.h>
 #include <blockfilter.h>
 #include <chain.h>
 #include <chainparams.h>
 #include <checkpoints.h>
 #include <compat/sanity.h>
 #include <config.h>
 #include <consensus/validation.h>
 #include <currencyunit.h>
 #include <flatfile.h>
 #include <fs.h>
 #include <hash.h>
 #include <httprpc.h>
 #include <httpserver.h>
 #include <index/blockfilterindex.h>
 #include <index/txindex.h>
 #include <interfaces/chain.h>
 #include <interfaces/node.h>
 #include <key.h>
 #include <miner.h>
 #include <net.h>
 #include <net_permissions.h>
 #include <net_processing.h>
 #include <netbase.h>
 #include <network.h>
 #include <node/context.h>
 #include <node/ui_interface.h>
 #include <policy/mempool.h>
 #include <policy/policy.h>
 #include <policy/settings.h>
 #include <rpc/blockchain.h>
 #include <rpc/register.h>
 #include <rpc/server.h>
 #include <rpc/util.h>
 #include <scheduler.h>
 #include <script/scriptcache.h>
 #include <script/sigcache.h>
 #include <script/standard.h>
 #include <shutdown.h>
 #include <sync.h>
 #include <timedata.h>
 #include <torcontrol.h>
 #include <txdb.h>
 #include <txmempool.h>
 #include <util/asmap.h>
 #include <util/check.h>
 #include <util/moneystr.h>
 #include <util/string.h>
 #include <util/threadnames.h>
 #include <util/translation.h>
 #include <validation.h>
 #include <validationinterface.h>
 #include <walletinitinterface.h>
 
 #include <boost/algorithm/string/replace.hpp>
 #include <boost/signals2/signal.hpp>
 #include <boost/thread/thread.hpp>
 
 #if ENABLE_ZMQ
 #include <zmq/zmqabstractnotifier.h>
 #include <zmq/zmqnotificationinterface.h>
 #include <zmq/zmqrpc.h>
 #endif
 
 #ifndef WIN32
 #include <attributes.h>
 #include <cerrno>
 #include <csignal>
 #include <sys/stat.h>
 #endif
 #include <cstdint>
 #include <cstdio>
 #include <functional>
 #include <set>
 
 static const bool DEFAULT_PROXYRANDOMIZE = true;
 static const bool DEFAULT_REST_ENABLE = false;
 static const bool DEFAULT_STOPAFTERBLOCKIMPORT = false;
 
 #ifdef WIN32
 // Win32 LevelDB doesn't use filedescriptors, and the ones used for accessing
 // block files don't count towards the fd_set size limit anyway.
 #define MIN_CORE_FILEDESCRIPTORS 0
 #else
 #define MIN_CORE_FILEDESCRIPTORS 150
 #endif
 
 static const char *DEFAULT_ASMAP_FILENAME = "ip_asn.map";
 
 /**
  * The PID file facilities.
  */
 static const char *BITCOIN_PID_FILENAME = "bitcoind.pid";
 
 static fs::path GetPidFile(const ArgsManager &args) {
     return AbsPathForConfigVal(
         fs::path(args.GetArg("-pid", BITCOIN_PID_FILENAME)));
 }
 
 NODISCARD static bool CreatePidFile(const ArgsManager &args) {
     fsbridge::ofstream file{GetPidFile(args)};
     if (file) {
 #ifdef WIN32
         tfm::format(file, "%d\n", GetCurrentProcessId());
 #else
         tfm::format(file, "%d\n", getpid());
 #endif
         return true;
     } else {
         return InitError(strprintf(_("Unable to create the PID file '%s': %s"),
                                    GetPidFile(args).string(),
                                    std::strerror(errno)));
     }
 }
 
 //////////////////////////////////////////////////////////////////////////////
 //
 // Shutdown
 //
 
 //
 // Thread management and startup/shutdown:
 //
 // The network-processing threads are all part of a thread group created by
 // AppInit() or the Qt main() function.
 //
 // A clean exit happens when StartShutdown() or the SIGTERM signal handler sets
 // fRequestShutdown, which makes main thread's WaitForShutdown() interrupts the
 // thread group.
 // And then, WaitForShutdown() makes all other on-going threads in the thread
 // group join the main thread.
 // Shutdown() is then called to clean up database connections, and stop other
 // threads that should only be stopped after the main network-processing threads
 // have exited.
 //
 // Shutdown for Qt is very similar, only it uses a QTimer to detect
 // ShutdownRequested() getting set, and then does the normal Qt shutdown thing.
 //
 
 static std::unique_ptr<ECCVerifyHandle> globalVerifyHandle;
 
 static std::thread g_load_block;
 
 static boost::thread_group threadGroup;
 
 void Interrupt(NodeContext &node) {
     InterruptHTTPServer();
     InterruptHTTPRPC();
     InterruptRPC();
     InterruptREST();
     InterruptTorControl();
     InterruptMapPort();
     if (g_avalanche) {
         // Avalanche needs to be stopped before we interrupt the thread group as
         // the scheduler will stop working then.
         g_avalanche->stopEventLoop();
     }
     if (node.connman) {
         node.connman->Interrupt();
     }
     if (g_txindex) {
         g_txindex->Interrupt();
     }
     ForEachBlockFilterIndex([](BlockFilterIndex &index) { index.Interrupt(); });
 }
 
 void Shutdown(NodeContext &node) {
     static Mutex g_shutdown_mutex;
     TRY_LOCK(g_shutdown_mutex, lock_shutdown);
     if (!lock_shutdown) {
         return;
     }
     LogPrintf("%s: In progress...\n", __func__);
     Assert(node.args);
 
     /// Note: Shutdown() must be able to handle cases in which initialization
     /// failed part of the way, for example if the data directory was found to
     /// be locked. Be sure that anything that writes files or flushes caches
     /// only does this if the respective module was initialized.
     util::ThreadRename("shutoff");
     if (node.mempool) {
         node.mempool->AddTransactionsUpdated(1);
     }
 
     StopHTTPRPC();
     StopREST();
     StopRPC();
     StopHTTPServer();
     for (const auto &client : node.chain_clients) {
         client->flush();
     }
     StopMapPort();
 
     // Because avalanche and the network depend on each other, it is important
     // to shut them down in this order:
     // 1. Stop avalanche event loop.
     // 2. Shutdown network processing.
     // 3. Destroy avalanche::Processor.
     // 4. Destroy CConnman
     if (g_avalanche) {
         g_avalanche->stopEventLoop();
     }
 
     // Because these depend on each-other, we make sure that neither can be
     // using the other before destroying them.
     if (node.peerman) {
         UnregisterValidationInterface(node.peerman.get());
     }
     // Follow the lock order requirements:
     // * CheckForStaleTipAndEvictPeers locks cs_main before indirectly calling
     //   GetExtraOutboundCount which locks cs_vNodes.
     // * ProcessMessage locks cs_main and g_cs_orphans before indirectly calling
     //   ForEachNode which locks cs_vNodes.
     // * CConnman::Stop calls DeleteNode, which calls FinalizeNode, which locks
     //   cs_main and calls EraseOrphansFor, which locks g_cs_orphans.
     //
     // Thus the implicit locking order requirement is:
     // (1) cs_main, (2) g_cs_orphans, (3) cs_vNodes.
     if (node.connman) {
         node.connman->StopThreads();
         LOCK2(::cs_main, ::g_cs_orphans);
         node.connman->StopNodes();
     }
 
     StopTorControl();
 
     // After everything has been shut down, but before things get flushed, stop
     // the CScheduler/checkqueue, threadGroup and load block thread.
     if (node.scheduler) {
         node.scheduler->stop();
     }
     if (g_load_block.joinable()) {
         g_load_block.join();
     }
     threadGroup.interrupt_all();
     threadGroup.join_all();
 
     // After the threads that potentially access these pointers have been
     // stopped, destruct and reset all to nullptr.
     node.peerman.reset();
 
     // Destroy various global instances
     g_avalanche.reset();
     node.connman.reset();
     node.banman.reset();
 
     if (node.mempool && node.mempool->IsLoaded() &&
         node.args->GetArg("-persistmempool", DEFAULT_PERSIST_MEMPOOL)) {
         DumpMempool(*node.mempool);
     }
 
     // FlushStateToDisk generates a ChainStateFlushed callback, which we should
     // avoid missing
     if (node.chainman) {
         LOCK(cs_main);
         for (CChainState *chainstate : node.chainman->GetAll()) {
             if (chainstate->CanFlushToDisk()) {
                 chainstate->ForceFlushStateToDisk();
             }
         }
     }
 
     // After there are no more peers/RPC left to give us new data which may
     // generate CValidationInterface callbacks, flush them...
     GetMainSignals().FlushBackgroundCallbacks();
 
     // Stop and delete all indexes only after flushing background callbacks.
     if (g_txindex) {
         g_txindex->Stop();
         g_txindex.reset();
     }
     ForEachBlockFilterIndex([](BlockFilterIndex &index) { index.Stop(); });
     DestroyAllBlockFilterIndexes();
 
     // Any future callbacks will be dropped. This should absolutely be safe - if
     // missing a callback results in an unrecoverable situation, unclean
     // shutdown would too. The only reason to do the above flushes is to let the
     // wallet catch up with our current chain to avoid any strange pruning edge
     // cases and make next startup faster by avoiding rescan.
 
     if (node.chainman) {
         LOCK(cs_main);
         for (CChainState *chainstate : node.chainman->GetAll()) {
             if (chainstate->CanFlushToDisk()) {
                 chainstate->ForceFlushStateToDisk();
                 chainstate->ResetCoinsViews();
             }
         }
         pblocktree.reset();
     }
     for (const auto &client : node.chain_clients) {
         client->stop();
     }
 
 #if ENABLE_ZMQ
     if (g_zmq_notification_interface) {
         UnregisterValidationInterface(g_zmq_notification_interface);
         delete g_zmq_notification_interface;
         g_zmq_notification_interface = nullptr;
     }
 #endif
 
     node.chain_clients.clear();
     UnregisterAllValidationInterfaces();
     GetMainSignals().UnregisterBackgroundSignalScheduler();
     globalVerifyHandle.reset();
     ECC_Stop();
     node.mempool.reset();
     node.chainman = nullptr;
     node.scheduler.reset();
 
     try {
         if (!fs::remove(GetPidFile(*node.args))) {
             LogPrintf("%s: Unable to remove PID file: File does not exist\n",
                       __func__);
         }
     } catch (const fs::filesystem_error &e) {
         LogPrintf("%s: Unable to remove PID file: %s\n", __func__,
                   fsbridge::get_filesystem_error_message(e));
     }
 
     node.args = nullptr;
     LogPrintf("%s: done\n", __func__);
 }
 
 /**
  * Signal handlers are very limited in what they are allowed to do.
  * The execution context the handler is invoked in is not guaranteed,
  * so we restrict handler operations to just touching variables:
  */
 #ifndef WIN32
 static void HandleSIGTERM(int) {
     StartShutdown();
 }
 
 static void HandleSIGHUP(int) {
     LogInstance().m_reopen_file = true;
 }
 #else
 static BOOL WINAPI consoleCtrlHandler(DWORD dwCtrlType) {
     StartShutdown();
     Sleep(INFINITE);
     return true;
 }
 #endif
 
 #ifndef WIN32
 static void registerSignalHandler(int signal, void (*handler)(int)) {
     struct sigaction sa;
     sa.sa_handler = handler;
     sigemptyset(&sa.sa_mask);
     sa.sa_flags = 0;
     sigaction(signal, &sa, NULL);
 }
 #endif
 
 static boost::signals2::connection rpc_notify_block_change_connection;
 static void OnRPCStarted() {
     rpc_notify_block_change_connection = uiInterface.NotifyBlockTip_connect(
         std::bind(RPCNotifyBlockChange, std::placeholders::_2));
 }
 
 static void OnRPCStopped() {
     rpc_notify_block_change_connection.disconnect();
     RPCNotifyBlockChange(nullptr);
     g_best_block_cv.notify_all();
     LogPrint(BCLog::RPC, "RPC stopped.\n");
 }
 
 void SetupServerArgs(NodeContext &node) {
     assert(!node.args);
     node.args = &gArgs;
     ArgsManager &argsman = *node.args;
 
     SetupHelpOptions(argsman);
     SetupCurrencyUnitOptions(argsman);
     // server-only for now
     argsman.AddArg("-help-debug",
                    "Print help message with debugging options and exit", false,
                    OptionsCategory::DEBUG_TEST);
 
     const auto defaultBaseParams =
         CreateBaseChainParams(CBaseChainParams::MAIN);
     const auto testnetBaseParams =
         CreateBaseChainParams(CBaseChainParams::TESTNET);
     const auto regtestBaseParams =
         CreateBaseChainParams(CBaseChainParams::REGTEST);
     const auto defaultChainParams = CreateChainParams(CBaseChainParams::MAIN);
     const auto testnetChainParams =
         CreateChainParams(CBaseChainParams::TESTNET);
     const auto regtestChainParams =
         CreateChainParams(CBaseChainParams::REGTEST);
 
     // Hidden Options
     std::vector<std::string> hidden_args = {
         "-dbcrashratio", "-forcecompactdb", "-parkdeepreorg",
         "-automaticunparking", "-replayprotectionactivationtime",
         "-enableminerfund",
         // GUI args. These will be overwritten by SetupUIArgs for the GUI
         "-allowselfsignedrootcertificates", "-choosedatadir", "-lang=<lang>",
         "-min", "-resetguisettings", "-rootcertificates=<file>", "-splash",
         "-uiplatform",
         // TODO remove after the November 2020 upgrade
         "-axionactivationtime"};
 
     // Set all of the args and their help
     // When adding new options to the categories, please keep and ensure
     // alphabetical ordering. Do not translate _(...) -help-debug options, Many
     // technical terms, and only a very small audience, so is unnecessary stress
     // to translators.
     argsman.AddArg("-version", "Print version and exit", ArgsManager::ALLOW_ANY,
                    OptionsCategory::OPTIONS);
 #if defined(HAVE_SYSTEM)
     argsman.AddArg(
         "-alertnotify=<cmd>",
         "Execute command when a relevant alert is received or we see "
         "a really long fork (%s in cmd is replaced by message)",
         ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
 #endif
     argsman.AddArg(
         "-assumevalid=<hex>",
         strprintf(
             "If this block is in the chain assume that it and its ancestors "
             "are valid and potentially skip their script verification (0 to "
             "verify all, default: %s, testnet: %s)",
             defaultChainParams->GetConsensus().defaultAssumeValid.GetHex(),
             testnetChainParams->GetConsensus().defaultAssumeValid.GetHex()),
         ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
     argsman.AddArg("-blocksdir=<dir>",
                    "Specify directory to hold blocks subdirectory for *.dat "
                    "files (default: <datadir>)",
                    ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
 #if defined(HAVE_SYSTEM)
     argsman.AddArg("-blocknotify=<cmd>",
                    "Execute command when the best block changes (%s in cmd is "
                    "replaced by block hash)",
                    ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
 #endif
     argsman.AddArg("-blockreconstructionextratxn=<n>",
                    strprintf("Extra transactions to keep in memory for compact "
                              "block reconstructions (default: %u)",
                              DEFAULT_BLOCK_RECONSTRUCTION_EXTRA_TXN),
                    ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
     argsman.AddArg(
         "-blocksonly",
         strprintf("Whether to reject transactions from network peers.  "
                   "Automatic broadcast and rebroadcast of any transactions "
                   "from inbound peers is disabled, unless the peer has the "
                   "'forcerelay' permission. RPC transactions are"
                   " not affected. (default: %u)",
                   DEFAULT_BLOCKSONLY),
         ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
     argsman.AddArg(
         "-conf=<file>",
         strprintf("Specify path to read-only configuration file. Relative "
                   "paths will be prefixed by datadir location. (default: %s)",
                   BITCOIN_CONF_FILENAME),
         ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
     argsman.AddArg("-datadir=<dir>", "Specify data directory",
                    ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
     argsman.AddArg(
         "-dbbatchsize",
         strprintf("Maximum database write batch size in bytes (default: %u)",
                   DEFAULT_DB_BATCH_SIZE),
         ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
         OptionsCategory::OPTIONS);
     argsman.AddArg(
         "-dbcache=<n>",
         strprintf("Set database cache size in MiB (%d to %d, default: %d)",
                   MIN_DB_CACHE_MB, MAX_DB_CACHE_MB, DEFAULT_DB_CACHE_MB),
         ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
     argsman.AddArg(
         "-debuglogfile=<file>",
         strprintf("Specify location of debug log file. Relative paths "
                   "will be prefixed by a net-specific datadir "
                   "location. (0 to disable; default: %s)",
                   DEFAULT_DEBUGLOGFILE),
         ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
     argsman.AddArg("-feefilter",
                    strprintf("Tell other nodes to filter invs to us by our "
                              "mempool min fee (default: %d)",
                              DEFAULT_FEEFILTER),
                    ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
                    OptionsCategory::OPTIONS);
     argsman.AddArg(
         "-finalizationdelay=<n>",
         strprintf("Set the minimum amount of time to wait between a "
                   "block header reception and the block finalization. "
                   "Unit is seconds (default: %d)",
                   DEFAULT_MIN_FINALIZATION_DELAY),
         ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
     argsman.AddArg(
         "-includeconf=<file>",
         "Specify additional configuration file, relative to the -datadir path "
         "(only useable from configuration file, not command line)",
         ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
     argsman.AddArg("-maxreorgdepth=<n>",
                    strprintf("Configure at what depth blocks are considered "
                              "final (default: %d). Use -1 to disable.",
                              DEFAULT_MAX_REORG_DEPTH),
                    ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
     argsman.AddArg("-loadblock=<file>",
                    "Imports blocks from external file on startup",
                    ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
     argsman.AddArg("-maxmempool=<n>",
                    strprintf("Keep the transaction memory pool below <n> "
                              "megabytes (default: %u)",
                              DEFAULT_MAX_MEMPOOL_SIZE),
                    ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
     argsman.AddArg("-maxorphantx=<n>",
                    strprintf("Keep at most <n> unconnectable transactions in "
                              "memory (default: %u)",
                              DEFAULT_MAX_ORPHAN_TRANSACTIONS),
                    ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
     argsman.AddArg("-mempoolexpiry=<n>",
                    strprintf("Do not keep transactions in the mempool longer "
                              "than <n> hours (default: %u)",
                              DEFAULT_MEMPOOL_EXPIRY),
                    ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
     argsman.AddArg(
         "-minimumchainwork=<hex>",
         strprintf(
             "Minimum work assumed to exist on a valid chain in hex "
             "(default: %s, testnet: %s)",
             defaultChainParams->GetConsensus().nMinimumChainWork.GetHex(),
             testnetChainParams->GetConsensus().nMinimumChainWork.GetHex()),
         ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
         OptionsCategory::OPTIONS);
     argsman.AddArg(
         "-par=<n>",
         strprintf("Set the number of script verification threads (%u to %d, 0 "
                   "= auto, <0 = leave that many cores free, default: %d)",
                   -GetNumCores(), MAX_SCRIPTCHECK_THREADS,
                   DEFAULT_SCRIPTCHECK_THREADS),
         ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
     argsman.AddArg("-persistmempool",
                    strprintf("Whether to save the mempool on shutdown and load "
                              "on restart (default: %u)",
                              DEFAULT_PERSIST_MEMPOOL),
                    ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
     argsman.AddArg(
         "-pid=<file>",
         strprintf("Specify pid file. Relative paths will be prefixed "
                   "by a net-specific datadir location. (default: %s)",
                   BITCOIN_PID_FILENAME),
         ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
     argsman.AddArg(
         "-prune=<n>",
         strprintf("Reduce storage requirements by enabling pruning (deleting) "
                   "of old blocks. This allows the pruneblockchain RPC to be "
                   "called to delete specific blocks, and enables automatic "
                   "pruning of old blocks if a target size in MiB is provided. "
                   "This mode is incompatible with -txindex and -rescan. "
                   "Warning: Reverting this setting requires re-downloading the "
                   "entire blockchain. (default: 0 = disable pruning blocks, 1 "
                   "= allow manual pruning via RPC, >=%u = automatically prune "
                   "block files to stay under the specified target size in MiB)",
                   MIN_DISK_SPACE_FOR_BLOCK_FILES / 1024 / 1024),
         ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
     argsman.AddArg(
         "-reindex-chainstate",
         "Rebuild chain state from the currently indexed blocks. When "
         "in pruning mode or if blocks on disk might be corrupted, use "
         "full -reindex instead.",
         ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
     argsman.AddArg(
         "-reindex",
         "Rebuild chain state and block index from the blk*.dat files on disk",
         ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
     argsman.AddArg(
         "-settings=<file>",
         strprintf(
             "Specify path to dynamic settings data file. Can be disabled with "
             "-nosettings. File is written at runtime and not meant to be "
             "edited by users (use %s instead for custom settings). Relative "
             "paths will be prefixed by datadir location. (default: %s)",
             BITCOIN_CONF_FILENAME, BITCOIN_SETTINGS_FILENAME),
         ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
 #ifndef WIN32
     argsman.AddArg(
         "-sysperms",
         "Create new files with system default permissions, instead of umask "
         "077 (only effective with disabled wallet functionality)",
         ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
 #else
     hidden_args.emplace_back("-sysperms");
 #endif
     argsman.AddArg("-txindex",
                    strprintf("Maintain a full transaction index, used by the "
                              "getrawtransaction rpc call (default: %d)",
                              DEFAULT_TXINDEX),
                    ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
     argsman.AddArg(
         "-blockfilterindex=<type>",
         strprintf("Maintain an index of compact filters by block "
                   "(default: %s, values: %s).",
                   DEFAULT_BLOCKFILTERINDEX, ListBlockFilterTypes()) +
             " If <type> is not supplied or if <type> = 1, indexes for "
             "all known types are enabled.",
         ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
     argsman.AddArg(
         "-usecashaddr",
         "Use Cash Address for destination encoding instead of base58 "
         "(activate by default on Jan, 14)",
         ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
 
     argsman.AddArg(
         "-addnode=<ip>",
         "Add a node to connect to and attempt to keep the connection "
         "open (see the `addnode` RPC command help for more info)",
         ArgsManager::ALLOW_ANY | ArgsManager::NETWORK_ONLY,
         OptionsCategory::CONNECTION);
     argsman.AddArg("-asmap=<file>",
                    strprintf("Specify asn mapping used for bucketing of the "
                              "peers (default: %s). Relative paths will be "
                              "prefixed by the net-specific datadir location.",
                              DEFAULT_ASMAP_FILENAME),
                    ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
     argsman.AddArg("-bantime=<n>",
                    strprintf("Default duration (in seconds) of manually "
                              "configured bans (default: %u)",
                              DEFAULT_MISBEHAVING_BANTIME),
                    ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
     argsman.AddArg("-bind=<addr>",
                    "Bind to given address and always listen on it. Use "
                    "[host]:port notation for IPv6",
                    ArgsManager::ALLOW_ANY | ArgsManager::NETWORK_ONLY,
                    OptionsCategory::CONNECTION);
     argsman.AddArg(
         "-connect=<ip>",
         "Connect only to the specified node(s); -connect=0 disables automatic "
         "connections (the rules for this peer are the same as for -addnode)",
         ArgsManager::ALLOW_ANY | ArgsManager::NETWORK_ONLY,
         OptionsCategory::CONNECTION);
     argsman.AddArg(
         "-discover",
         "Discover own IP addresses (default: 1 when listening and no "
         "-externalip or -proxy)",
         ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
     argsman.AddArg("-dns",
                    strprintf("Allow DNS lookups for -addnode, -seednode and "
                              "-connect (default: %d)",
                              DEFAULT_NAME_LOOKUP),
                    ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
     argsman.AddArg(
         "-dnsseed",
         "Query for peer addresses via DNS lookup, if low on addresses "
         "(default: 1 unless -connect used)",
         ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
 
     argsman.AddArg("-externalip=<ip>", "Specify your own public address",
                    ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
     argsman.AddArg(
         "-forcednsseed",
         strprintf(
             "Always query for peer addresses via DNS lookup (default: %d)",
             DEFAULT_FORCEDNSSEED),
         ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
     argsman.AddArg("-overridednsseed",
                    "If set, only use the specified DNS seed when "
                    "querying for peer addresses via DNS lookup.",
                    ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
     argsman.AddArg(
         "-listen",
         "Accept connections from outside (default: 1 if no -proxy or -connect)",
         ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
     argsman.AddArg(
         "-listenonion",
         strprintf("Automatically create Tor onion service (default: %d)",
                   DEFAULT_LISTEN_ONION),
         ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
     argsman.AddArg(
         "-maxconnections=<n>",
         strprintf("Maintain at most <n> connections to peers. The effective "
                   "limit depends on system limitations and might be lower than "
                   "the specified value (default: %u)",
                   DEFAULT_MAX_PEER_CONNECTIONS),
         ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
     argsman.AddArg("-maxreceivebuffer=<n>",
                    strprintf("Maximum per-connection receive buffer, <n>*1000 "
                              "bytes (default: %u)",
                              DEFAULT_MAXRECEIVEBUFFER),
                    ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
     argsman.AddArg(
         "-maxsendbuffer=<n>",
         strprintf(
             "Maximum per-connection send buffer, <n>*1000 bytes (default: %u)",
             DEFAULT_MAXSENDBUFFER),
         ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
     argsman.AddArg(
         "-maxtimeadjustment",
         strprintf("Maximum allowed median peer time offset adjustment. Local "
                   "perspective of time may be influenced by peers forward or "
                   "backward by this amount. (default: %u seconds)",
                   DEFAULT_MAX_TIME_ADJUSTMENT),
         ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
     argsman.AddArg("-onion=<ip:port>",
                    strprintf("Use separate SOCKS5 proxy to reach peers via Tor "
                              "onion services (default: %s)",
                              "-proxy"),
                    ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
     argsman.AddArg(
         "-onlynet=<net>",
         "Make outgoing connections only through network <net> (ipv4, ipv6 or "
         "onion). Incoming connections are not affected by this option. This "
         "option can be specified multiple times to allow multiple networks.",
         ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
     argsman.AddArg("-peerbloomfilters",
                    strprintf("Support filtering of blocks and transaction with "
                              "bloom filters (default: %d)",
                              DEFAULT_PEERBLOOMFILTERS),
                    ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
     argsman.AddArg(
         "-peerblockfilters",
         strprintf(
             "Serve compact block filters to peers per BIP 157 (default: %u)",
             DEFAULT_PEERBLOCKFILTERS),
         ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
     argsman.AddArg("-permitbaremultisig",
                    strprintf("Relay non-P2SH multisig (default: %d)",
                              DEFAULT_PERMIT_BAREMULTISIG),
                    ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
     argsman.AddArg("-port=<port>",
                    strprintf("Listen for connections on <port> (default: %u, "
                              "testnet: %u, regtest: %u)",
                              defaultChainParams->GetDefaultPort(),
                              testnetChainParams->GetDefaultPort(),
                              regtestChainParams->GetDefaultPort()),
                    ArgsManager::ALLOW_ANY | ArgsManager::NETWORK_ONLY,
                    OptionsCategory::CONNECTION);
     argsman.AddArg("-proxy=<ip:port>", "Connect through SOCKS5 proxy",
                    ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
     argsman.AddArg(
         "-proxyrandomize",
         strprintf("Randomize credentials for every proxy connection. "
                   "This enables Tor stream isolation (default: %d)",
                   DEFAULT_PROXYRANDOMIZE),
         ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
     argsman.AddArg(
         "-seednode=<ip>",
         "Connect to a node to retrieve peer addresses, and disconnect",
         ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
     gArgs.AddArg("-networkactive",
                  "Enable all P2P network activity (default: 1). Can be changed "
                  "by the setnetworkactive RPC command",
                  ArgsManager::ALLOW_BOOL, OptionsCategory::CONNECTION);
     argsman.AddArg("-timeout=<n>",
                    strprintf("Specify connection timeout in milliseconds "
                              "(minimum: 1, default: %d)",
                              DEFAULT_CONNECT_TIMEOUT),
                    ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
     argsman.AddArg(
         "-peertimeout=<n>",
         strprintf("Specify p2p connection timeout in seconds. This option "
                   "determines the amount of time a peer may be inactive before "
                   "the connection to it is dropped. (minimum: 1, default: %d)",
                   DEFAULT_PEER_CONNECT_TIMEOUT),
         true, OptionsCategory::CONNECTION);
     argsman.AddArg(
         "-torcontrol=<ip>:<port>",
         strprintf(
             "Tor control port to use if onion listening enabled (default: %s)",
             DEFAULT_TOR_CONTROL),
         ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
     argsman.AddArg("-torpassword=<pass>",
                    "Tor control port password (default: empty)",
                    ArgsManager::ALLOW_ANY | ArgsManager::SENSITIVE,
                    OptionsCategory::CONNECTION);
 #ifdef USE_UPNP
 #if USE_UPNP
     argsman.AddArg("-upnp",
                    "Use UPnP to map the listening port (default: 1 when "
                    "listening and no -proxy)",
                    ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
 #else
     argsman.AddArg(
         "-upnp",
         strprintf("Use UPnP to map the listening port (default: %u)", 0),
         ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
 #endif
 #else
     hidden_args.emplace_back("-upnp");
 #endif
     argsman.AddArg(
         "-whitebind=<[permissions@]addr>",
         "Bind to the given address and add permission flags to the peers "
         "connecting to it."
         "Use [host]:port notation for IPv6. Allowed permissions: " +
             Join(NET_PERMISSIONS_DOC, ", ") +
             ". "
             "Specify multiple permissions separated by commas (default: "
             "download,noban,mempool,relay). Can be specified multiple times.",
         ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
 
     argsman.AddArg("-whitelist=<[permissions@]IP address or network>",
                    "Add permission flags to the peers connecting from the "
                    "given IP address (e.g. 1.2.3.4) or CIDR-notated network "
                    "(e.g. 1.2.3.0/24). "
                    "Uses the same permissions as -whitebind. Can be specified "
                    "multiple times.",
                    ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
     argsman.AddArg(
         "-maxuploadtarget=<n>",
         strprintf("Tries to keep outbound traffic under the given target (in "
                   "MiB per 24h). Limit does not apply to peers with 'download' "
                   "permission. 0 = no limit (default: %d)",
                   DEFAULT_MAX_UPLOAD_TARGET),
         ArgsManager::ALLOW_ANY, OptionsCategory::CONNECTION);
 
     g_wallet_init_interface.AddWalletOptions(argsman);
 
 #if ENABLE_ZMQ
     argsman.AddArg("-zmqpubhashblock=<address>",
                    "Enable publish hash block in <address>",
                    ArgsManager::ALLOW_ANY, OptionsCategory::ZMQ);
     argsman.AddArg("-zmqpubhashtx=<address>",
                    "Enable publish hash transaction in <address>",
                    ArgsManager::ALLOW_ANY, OptionsCategory::ZMQ);
     argsman.AddArg("-zmqpubrawblock=<address>",
                    "Enable publish raw block in <address>",
                    ArgsManager::ALLOW_ANY, OptionsCategory::ZMQ);
     argsman.AddArg("-zmqpubrawtx=<address>",
                    "Enable publish raw transaction in <address>",
                    ArgsManager::ALLOW_ANY, OptionsCategory::ZMQ);
     argsman.AddArg(
         "-zmqpubhashblockhwm=<n>",
         strprintf("Set publish hash block outbound message high water "
                   "mark (default: %d)",
                   CZMQAbstractNotifier::DEFAULT_ZMQ_SNDHWM),
         false, OptionsCategory::ZMQ);
     argsman.AddArg(
         "-zmqpubhashtxhwm=<n>",
         strprintf("Set publish hash transaction outbound message high "
                   "water mark (default: %d)",
                   CZMQAbstractNotifier::DEFAULT_ZMQ_SNDHWM),
         false, OptionsCategory::ZMQ);
     argsman.AddArg(
         "-zmqpubrawblockhwm=<n>",
         strprintf("Set publish raw block outbound message high water "
                   "mark (default: %d)",
                   CZMQAbstractNotifier::DEFAULT_ZMQ_SNDHWM),
         false, OptionsCategory::ZMQ);
     argsman.AddArg(
         "-zmqpubrawtxhwm=<n>",
         strprintf("Set publish raw transaction outbound message high "
                   "water mark (default: %d)",
                   CZMQAbstractNotifier::DEFAULT_ZMQ_SNDHWM),
         false, OptionsCategory::ZMQ);
 #else
     hidden_args.emplace_back("-zmqpubhashblock=<address>");
     hidden_args.emplace_back("-zmqpubhashtx=<address>");
     hidden_args.emplace_back("-zmqpubrawblock=<address>");
     hidden_args.emplace_back("-zmqpubrawtx=<address>");
     hidden_args.emplace_back("-zmqpubhashblockhwm=<n>");
     hidden_args.emplace_back("-zmqpubhashtxhwm=<n>");
     hidden_args.emplace_back("-zmqpubrawblockhwm=<n>");
     hidden_args.emplace_back("-zmqpubrawtxhwm=<n>");
 #endif
 
     argsman.AddArg(
         "-checkblocks=<n>",
         strprintf("How many blocks to check at startup (default: %u, 0 = all)",
                   DEFAULT_CHECKBLOCKS),
         ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
         OptionsCategory::DEBUG_TEST);
     argsman.AddArg("-checklevel=<n>",
                    strprintf("How thorough the block verification of "
                              "-checkblocks is: %s (0-4, default: %u)",
                              Join(CHECKLEVEL_DOC, ", "), DEFAULT_CHECKLEVEL),
                    ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
                    OptionsCategory::DEBUG_TEST);
     argsman.AddArg("-checkblockindex",
                    strprintf("Do a consistency check for the block tree, "
                              "chainstate, and other validation data structures "
                              "occasionally. (default: %u, regtest: %u)",
                              defaultChainParams->DefaultConsistencyChecks(),
                              regtestChainParams->DefaultConsistencyChecks()),
                    ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
                    OptionsCategory::DEBUG_TEST);
     argsman.AddArg(
         "-checkmempool=<n>",
         strprintf(
             "Run checks every <n> transactions (default: %u, regtest: %u)",
             defaultChainParams->DefaultConsistencyChecks(),
             regtestChainParams->DefaultConsistencyChecks()),
         ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
         OptionsCategory::DEBUG_TEST);
     argsman.AddArg("-checkpoints",
                    strprintf("Only accept block chain matching built-in "
                              "checkpoints (default: %d)",
                              DEFAULT_CHECKPOINTS_ENABLED),
                    ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
                    OptionsCategory::DEBUG_TEST);
     argsman.AddArg("-deprecatedrpc=<method>",
                    "Allows deprecated RPC method(s) to be used",
                    ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
                    OptionsCategory::DEBUG_TEST);
     argsman.AddArg("-dropmessagestest=<n>",
                    "Randomly drop 1 of every <n> network messages",
                    ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
                    OptionsCategory::DEBUG_TEST);
     argsman.AddArg(
         "-stopafterblockimport",
         strprintf("Stop running after importing blocks from disk (default: %d)",
                   DEFAULT_STOPAFTERBLOCKIMPORT),
         ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
         OptionsCategory::DEBUG_TEST);
     argsman.AddArg("-stopatheight",
                    strprintf("Stop running after reaching the given height in "
                              "the main chain (default: %u)",
                              DEFAULT_STOPATHEIGHT),
                    ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
                    OptionsCategory::DEBUG_TEST);
     argsman.AddArg(
         "-limitancestorcount=<n>",
         strprintf("Do not accept transactions if number of in-mempool "
                   "ancestors is <n> or more (default: %u)",
                   DEFAULT_ANCESTOR_LIMIT),
         ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
         OptionsCategory::DEBUG_TEST);
     argsman.AddArg(
         "-limitancestorsize=<n>",
         strprintf("Do not accept transactions whose size with all in-mempool "
                   "ancestors exceeds <n> kilobytes (default: %u)",
                   DEFAULT_ANCESTOR_SIZE_LIMIT),
         ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
         OptionsCategory::DEBUG_TEST);
     argsman.AddArg(
         "-limitdescendantcount=<n>",
         strprintf("Do not accept transactions if any ancestor would have <n> "
                   "or more in-mempool descendants (default: %u)",
                   DEFAULT_DESCENDANT_LIMIT),
         ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
         OptionsCategory::DEBUG_TEST);
     argsman.AddArg(
         "-limitdescendantsize=<n>",
         strprintf("Do not accept transactions if any ancestor would have more "
                   "than <n> kilobytes of in-mempool descendants (default: %u).",
                   DEFAULT_DESCENDANT_SIZE_LIMIT),
         ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
         OptionsCategory::DEBUG_TEST);
     argsman.AddArg("-addrmantest", "Allows to test address relay on localhost",
                    ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
                    OptionsCategory::DEBUG_TEST);
 
     argsman.AddArg("-debug=<category>",
                    strprintf("Output debugging information (default: %u, "
                              "supplying <category> is optional)",
                              0) +
                        ". " +
                        "If <category> is not supplied or if <category> = 1, "
                        "output all debugging information. <category> can be: " +
                        LogInstance().LogCategoriesString() + ".",
                    ArgsManager::ALLOW_ANY, OptionsCategory::DEBUG_TEST);
     argsman.AddArg(
         "-debugexclude=<category>",
         strprintf("Exclude debugging information for a category. Can be used "
                   "in conjunction with -debug=1 to output debug logs for all "
                   "categories except one or more specified categories."),
         ArgsManager::ALLOW_ANY, OptionsCategory::DEBUG_TEST);
     argsman.AddArg(
         "-logips",
         strprintf("Include IP addresses in debug output (default: %d)",
                   DEFAULT_LOGIPS),
         ArgsManager::ALLOW_ANY, OptionsCategory::DEBUG_TEST);
     argsman.AddArg(
         "-logtimestamps",
         strprintf("Prepend debug output with timestamp (default: %d)",
                   DEFAULT_LOGTIMESTAMPS),
         ArgsManager::ALLOW_ANY, OptionsCategory::DEBUG_TEST);
 #ifdef HAVE_THREAD_LOCAL
     argsman.AddArg(
         "-logthreadnames",
         strprintf(
             "Prepend debug output with name of the originating thread (only "
             "available on platforms supporting thread_local) (default: %u)",
             DEFAULT_LOGTHREADNAMES),
         ArgsManager::ALLOW_ANY, OptionsCategory::DEBUG_TEST);
 #else
     hidden_args.emplace_back("-logthreadnames");
 #endif
     argsman.AddArg(
         "-logtimemicros",
         strprintf("Add microsecond precision to debug timestamps (default: %d)",
                   DEFAULT_LOGTIMEMICROS),
         ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
         OptionsCategory::DEBUG_TEST);
     argsman.AddArg("-mocktime=<n>",
                    "Replace actual time with " + UNIX_EPOCH_TIME +
                        " (default: 0)",
                    ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
                    OptionsCategory::DEBUG_TEST);
     argsman.AddArg(
         "-maxsigcachesize=<n>",
         strprintf("Limit size of signature cache to <n> MiB (default: %u)",
                   DEFAULT_MAX_SIG_CACHE_SIZE),
         ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
         OptionsCategory::DEBUG_TEST);
     argsman.AddArg(
         "-maxscriptcachesize=<n>",
         strprintf("Limit size of script cache to <n> MiB (default: %u)",
                   DEFAULT_MAX_SCRIPT_CACHE_SIZE),
         ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
         OptionsCategory::DEBUG_TEST);
     argsman.AddArg("-maxtipage=<n>",
                    strprintf("Maximum tip age in seconds to consider node in "
                              "initial block download (default: %u)",
                              DEFAULT_MAX_TIP_AGE),
                    ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
                    OptionsCategory::DEBUG_TEST);
 
     argsman.AddArg(
         "-printtoconsole",
         "Send trace/debug info to console instead of debug.log file (default: "
         "1 when no -daemon. To disable logging to file, set debuglogfile=0)",
         ArgsManager::ALLOW_ANY, OptionsCategory::DEBUG_TEST);
     argsman.AddArg("-printpriority",
                    strprintf("Log transaction priority and fee per kB when "
                              "mining blocks (default: %d)",
                              DEFAULT_PRINTPRIORITY),
                    ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
                    OptionsCategory::DEBUG_TEST);
     argsman.AddArg(
         "-shrinkdebugfile",
         "Shrink debug.log file on client startup (default: 1 when no -debug)",
         ArgsManager::ALLOW_ANY, OptionsCategory::DEBUG_TEST);
 
     argsman.AddArg("-uacomment=<cmt>",
                    "Append comment to the user agent string",
                    ArgsManager::ALLOW_ANY, OptionsCategory::DEBUG_TEST);
     argsman.AddArg("-uaclientname=<clientname>", "Set user agent client name",
                    ArgsManager::ALLOW_ANY, OptionsCategory::DEBUG_TEST);
     argsman.AddArg("-uaclientversion=<clientversion>",
                    "Set user agent client version", ArgsManager::ALLOW_ANY,
                    OptionsCategory::DEBUG_TEST);
 
     SetupChainParamsBaseOptions(argsman);
 
     argsman.AddArg(
         "-acceptnonstdtxn",
         strprintf(
             "Relay and mine \"non-standard\" transactions (%sdefault: %u)",
             "testnet/regtest only; ", defaultChainParams->RequireStandard()),
         ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
         OptionsCategory::NODE_RELAY);
     argsman.AddArg("-excessiveblocksize=<n>",
                    strprintf("Do not accept blocks larger than this limit, in "
                              "bytes (default: %d)",
                              DEFAULT_MAX_BLOCK_SIZE),
                    ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
                    OptionsCategory::NODE_RELAY);
     const auto &ticker = Currency::get().ticker;
     argsman.AddArg(
         "-dustrelayfee=<amt>",
         strprintf("Fee rate (in %s/kB) used to define dust, the value of an "
                   "output such that it will cost about 1/3 of its value in "
                   "fees at this fee rate to spend it. (default: %s)",
                   ticker, FormatMoney(DUST_RELAY_TX_FEE)),
         ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
         OptionsCategory::NODE_RELAY);
 
     argsman.AddArg("-bytespersigop",
                    strprintf("Equivalent bytes per sigop in transactions for "
                              "relay and mining (default: %u)",
                              DEFAULT_BYTES_PER_SIGOP),
                    ArgsManager::ALLOW_ANY, OptionsCategory::NODE_RELAY);
     argsman.AddArg(
         "-datacarrier",
         strprintf("Relay and mine data carrier transactions (default: %d)",
                   DEFAULT_ACCEPT_DATACARRIER),
         ArgsManager::ALLOW_ANY, OptionsCategory::NODE_RELAY);
     argsman.AddArg(
         "-datacarriersize",
         strprintf("Maximum size of data in data carrier transactions "
                   "we relay and mine (default: %u)",
                   MAX_OP_RETURN_RELAY),
         ArgsManager::ALLOW_ANY, OptionsCategory::NODE_RELAY);
     argsman.AddArg(
         "-minrelaytxfee=<amt>",
         strprintf("Fees (in %s/kB) smaller than this are rejected for "
                   "relaying, mining and transaction creation (default: %s)",
                   ticker, FormatMoney(DEFAULT_MIN_RELAY_TX_FEE_PER_KB)),
         ArgsManager::ALLOW_ANY, OptionsCategory::NODE_RELAY);
     argsman.AddArg(
         "-whitelistrelay",
         strprintf("Add 'relay' permission to whitelisted inbound peers "
                   "with default permissions. This will accept relayed "
                   "transactions even when not relaying transactions "
                   "(default: %d)",
                   DEFAULT_WHITELISTRELAY),
         ArgsManager::ALLOW_ANY, OptionsCategory::NODE_RELAY);
     argsman.AddArg(
         "-whitelistforcerelay",
         strprintf("Add 'forcerelay' permission to whitelisted inbound peers"
                   " with default permissions. This will relay transactions "
                   "even if the transactions were already in the mempool "
                   "(default: %d)",
                   DEFAULT_WHITELISTFORCERELAY),
         ArgsManager::ALLOW_ANY, OptionsCategory::NODE_RELAY);
 
     // Not sure this really belongs here, but it will do for now.
     // FIXME: This doesn't work anyways.
     argsman.AddArg("-excessutxocharge=<amt>",
                    strprintf("Fees (in %s/kB) to charge per utxo created for "
                              "relaying, and mining (default: %s)",
                              ticker, FormatMoney(DEFAULT_UTXO_FEE)),
                    ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
                    OptionsCategory::NODE_RELAY);
 
     argsman.AddArg("-blockmaxsize=<n>",
                    strprintf("Set maximum block size in bytes (default: %d)",
                              DEFAULT_MAX_GENERATED_BLOCK_SIZE),
                    ArgsManager::ALLOW_ANY, OptionsCategory::BLOCK_CREATION);
     argsman.AddArg(
         "-blockmintxfee=<amt>",
         strprintf("Set lowest fee rate (in %s/kB) for transactions to "
                   "be included in block creation. (default: %s)",
                   ticker, FormatMoney(DEFAULT_BLOCK_MIN_TX_FEE_PER_KB)),
         ArgsManager::ALLOW_ANY, OptionsCategory::BLOCK_CREATION);
 
     argsman.AddArg("-blockversion=<n>",
                    "Override block version to test forking scenarios",
                    ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
                    OptionsCategory::BLOCK_CREATION);
 
     argsman.AddArg("-server", "Accept command line and JSON-RPC commands",
                    ArgsManager::ALLOW_ANY, OptionsCategory::RPC);
     argsman.AddArg("-rest",
                    strprintf("Accept public REST requests (default: %d)",
                              DEFAULT_REST_ENABLE),
                    ArgsManager::ALLOW_ANY, OptionsCategory::RPC);
     argsman.AddArg(
         "-rpcbind=<addr>[:port]",
         "Bind to given address to listen for JSON-RPC connections. Do not "
         "expose the RPC server to untrusted networks such as the public "
         "internet! This option is ignored unless -rpcallowip is also passed. "
         "Port is optional and overrides -rpcport.  Use [host]:port notation "
         "for IPv6. This option can be specified multiple times (default: "
         "127.0.0.1 and ::1 i.e., localhost)",
         ArgsManager::ALLOW_ANY | ArgsManager::NETWORK_ONLY |
             ArgsManager::SENSITIVE,
         OptionsCategory::RPC);
     argsman.AddArg(
         "-rpccookiefile=<loc>",
         "Location of the auth cookie. Relative paths will be prefixed "
         "by a net-specific datadir location. (default: data dir)",
         ArgsManager::ALLOW_ANY, OptionsCategory::RPC);
     argsman.AddArg("-rpcuser=<user>", "Username for JSON-RPC connections",
                    ArgsManager::ALLOW_ANY | ArgsManager::SENSITIVE,
                    OptionsCategory::RPC);
     argsman.AddArg("-rpcpassword=<pw>", "Password for JSON-RPC connections",
                    ArgsManager::ALLOW_ANY | ArgsManager::SENSITIVE,
                    OptionsCategory::RPC);
     argsman.AddArg(
         "-rpcwhitelist=<whitelist>",
         "Set a whitelist to filter incoming RPC calls for a specific user. The "
         "field <whitelist> comes in the format: <USERNAME>:<rpc 1>,<rpc "
         "2>,...,<rpc n>. If multiple whitelists are set for a given user, they "
         "are set-intersected. See -rpcwhitelistdefault documentation for "
         "information on default whitelist behavior.",
         ArgsManager::ALLOW_ANY, OptionsCategory::RPC);
     argsman.AddArg(
         "-rpcwhitelistdefault",
         "Sets default behavior for rpc whitelisting. Unless "
         "rpcwhitelistdefault is set to 0, if any -rpcwhitelist is set, the rpc "
         "server acts as if all rpc users are subject to "
         "empty-unless-otherwise-specified whitelists. If rpcwhitelistdefault "
         "is set to 1 and no -rpcwhitelist is set, rpc server acts as if all "
         "rpc users are subject to empty whitelists.",
         ArgsManager::ALLOW_BOOL, OptionsCategory::RPC);
     argsman.AddArg(
         "-rpcauth=<userpw>",
         "Username and HMAC-SHA-256 hashed password for JSON-RPC connections. "
         "The field <userpw> comes in the format: <USERNAME>:<SALT>$<HASH>. A "
         "canonical python script is included in share/rpcauth. The client then "
         "connects normally using the rpcuser=<USERNAME>/rpcpassword=<PASSWORD> "
         "pair of arguments. This option can be specified multiple times",
         ArgsManager::ALLOW_ANY | ArgsManager::SENSITIVE, OptionsCategory::RPC);
     argsman.AddArg("-rpcport=<port>",
                    strprintf("Listen for JSON-RPC connections on <port> "
                              "(default: %u, testnet: %u, regtest: %u)",
                              defaultBaseParams->RPCPort(),
                              testnetBaseParams->RPCPort(),
                              regtestBaseParams->RPCPort()),
                    ArgsManager::ALLOW_ANY | ArgsManager::NETWORK_ONLY,
                    OptionsCategory::RPC);
     argsman.AddArg(
         "-rpcallowip=<ip>",
         "Allow JSON-RPC connections from specified source. Valid for "
         "<ip> are a single IP (e.g. 1.2.3.4), a network/netmask (e.g. "
         "1.2.3.4/255.255.255.0) or a network/CIDR (e.g. 1.2.3.4/24). "
         "This option can be specified multiple times",
         ArgsManager::ALLOW_ANY, OptionsCategory::RPC);
     argsman.AddArg(
         "-rpcthreads=<n>",
         strprintf(
             "Set the number of threads to service RPC calls (default: %d)",
             DEFAULT_HTTP_THREADS),
         ArgsManager::ALLOW_ANY, OptionsCategory::RPC);
     argsman.AddArg(
         "-rpccorsdomain=value",
         "Domain from which to accept cross origin requests (browser enforced)",
         ArgsManager::ALLOW_ANY, OptionsCategory::RPC);
 
     argsman.AddArg("-rpcworkqueue=<n>",
                    strprintf("Set the depth of the work queue to service RPC "
                              "calls (default: %d)",
                              DEFAULT_HTTP_WORKQUEUE),
                    ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
                    OptionsCategory::RPC);
     argsman.AddArg("-rpcservertimeout=<n>",
                    strprintf("Timeout during HTTP requests (default: %d)",
                              DEFAULT_HTTP_SERVER_TIMEOUT),
                    ArgsManager::ALLOW_ANY | ArgsManager::DEBUG_ONLY,
                    OptionsCategory::RPC);
 
 #if HAVE_DECL_DAEMON
     argsman.AddArg("-daemon",
                    "Run in the background as a daemon and accept commands",
                    ArgsManager::ALLOW_ANY, OptionsCategory::OPTIONS);
 #else
     hidden_args.emplace_back("-daemon");
 #endif
 
     // Avalanche options.
     argsman.AddArg(
         "-enableavalanche",
         strprintf("Enable avalanche (default: %u)", AVALANCHE_DEFAULT_ENABLED),
         ArgsManager::ALLOW_ANY, OptionsCategory::AVALANCHE);
     argsman.AddArg("-enableavalanchepeerdiscovery",
                    strprintf("Enable avalanche peer discovery (default: %u)",
                              AVALANCHE_DEFAULT_PEER_DISCOVERY_ENABLED),
                    ArgsManager::ALLOW_ANY, OptionsCategory::AVALANCHE);
     argsman.AddArg(
         "-avacooldown",
         strprintf("Mandatory cooldown between two avapoll (default: %u)",
                   AVALANCHE_DEFAULT_COOLDOWN),
         ArgsManager::ALLOW_ANY, OptionsCategory::AVALANCHE);
     argsman.AddArg(
         "-avadelegation",
         "Avalanche proof delegation to the master key used by this node "
         "(default: none). Should be used in conjunction with -avaproof and "
         "-avamasterkey",
         ArgsManager::ALLOW_ANY, OptionsCategory::AVALANCHE);
     argsman.AddArg("-avaproof",
                    "Avalanche proof to be used by this node (default: none)",
                    ArgsManager::ALLOW_ANY, OptionsCategory::AVALANCHE);
     argsman.AddArg("-avamasterkey",
                    "Master key associated with the proof. If a proof is "
                    "required, this is mandatory.",
                    ArgsManager::ALLOW_ANY, OptionsCategory::AVALANCHE);
     argsman.AddArg("-avasessionkey", "Avalanche session key (default: random)",
                    ArgsManager::ALLOW_ANY, OptionsCategory::AVALANCHE);
 
     // Add the hidden options
     argsman.AddHiddenArgs(hidden_args);
 }
 
 std::string LicenseInfo() {
     const std::string URL_SOURCE_CODE =
         "<https://github.com/Bitcoin-ABC/bitcoin-abc>";
     const std::string URL_WEBSITE = "<https://www.bitcoinabc.org>";
 
     return CopyrightHolders(strprintf(_("Copyright (C) %i-%i").translated, 2009,
                                       COPYRIGHT_YEAR) +
                             " ") +
            "\n" + "\n" +
            strprintf(_("Please contribute if you find %s useful. "
                        "Visit %s for further information about the software.")
                          .translated,
                      PACKAGE_NAME, URL_WEBSITE) +
            "\n" +
            strprintf(_("The source code is available from %s.").translated,
                      URL_SOURCE_CODE) +
            "\n" + "\n" + _("This is experimental software.").translated + "\n" +
            strprintf(_("Distributed under the MIT software license, see the "
                        "accompanying file %s or %s")
                          .translated,
                      "COPYING", "<https://opensource.org/licenses/MIT>") +
            "\n" + "\n" +
            strprintf(_("This product includes software developed by the "
                        "OpenSSL Project for use in the OpenSSL Toolkit %s and "
                        "cryptographic software written by Eric Young and UPnP "
                        "software written by Thomas Bernard.")
                          .translated,
                      "<https://www.openssl.org>") +
            "\n";
 }
 
 static bool fHaveGenesis = false;
 static Mutex g_genesis_wait_mutex;
 static std::condition_variable g_genesis_wait_cv;
 
 static void BlockNotifyGenesisWait(const CBlockIndex *pBlockIndex) {
     if (pBlockIndex != nullptr) {
         {
             LOCK(g_genesis_wait_mutex);
             fHaveGenesis = true;
         }
         g_genesis_wait_cv.notify_all();
     }
 }
 
 struct CImportingNow {
     CImportingNow() {
         assert(fImporting == false);
         fImporting = true;
     }
 
     ~CImportingNow() {
         assert(fImporting == true);
         fImporting = false;
     }
 };
 
 // If we're using -prune with -reindex, then delete block files that will be
 // ignored by the reindex.  Since reindexing works by starting at block file 0
 // and looping until a blockfile is missing, do the same here to delete any
 // later block files after a gap. Also delete all rev files since they'll be
 // rewritten by the reindex anyway. This ensures that vinfoBlockFile is in sync
 // with what's actually on disk by the time we start downloading, so that
 // pruning works correctly.
 static void CleanupBlockRevFiles() {
     std::map<std::string, fs::path> mapBlockFiles;
 
     // Glob all blk?????.dat and rev?????.dat files from the blocks directory.
     // Remove the rev files immediately and insert the blk file paths into an
     // ordered map keyed by block file index.
     LogPrintf("Removing unusable blk?????.dat and rev?????.dat files for "
               "-reindex with -prune\n");
     const auto directoryIterator = fs::directory_iterator{GetBlocksDir()};
     for (const auto &file : directoryIterator) {
         const auto fileName = file.path().filename().string();
         if (fs::is_regular_file(file) && fileName.length() == 12 &&
             fileName.substr(8, 4) == ".dat") {
             if (fileName.substr(0, 3) == "blk") {
                 mapBlockFiles[fileName.substr(3, 5)] = file.path();
             } else if (fileName.substr(0, 3) == "rev") {
                 remove(file.path());
             }
         }
     }
 
     // Remove all block files that aren't part of a contiguous set starting at
     // zero by walking the ordered map (keys are block file indices) by keeping
     // a separate counter. Once we hit a gap (or if 0 doesn't exist) start
     // removing block files.
     int contiguousCounter = 0;
     for (const auto &item : mapBlockFiles) {
         if (atoi(item.first) == contiguousCounter) {
             contiguousCounter++;
             continue;
         }
         remove(item.second);
     }
 }
 
 static void ThreadImport(const Config &config, ChainstateManager &chainman,
                          std::vector<fs::path> vImportFiles,
                          const ArgsManager &args) {
     ScheduleBatchPriority();
 
     {
         const CChainParams &chainParams = config.GetChainParams();
 
         CImportingNow imp;
 
         // -reindex
         if (fReindex) {
             int nFile = 0;
             while (true) {
                 FlatFilePos pos(nFile, 0);
                 if (!fs::exists(GetBlockPosFilename(pos))) {
                     // No block files left to reindex
                     break;
                 }
                 FILE *file = OpenBlockFile(pos, true);
                 if (!file) {
                     // This error is logged in OpenBlockFile
                     break;
                 }
                 LogPrintf("Reindexing block file blk%05u.dat...\n",
                           (unsigned int)nFile);
                 LoadExternalBlockFile(config, file, &pos);
                 if (ShutdownRequested()) {
                     LogPrintf("Shutdown requested. Exit %s\n", __func__);
                     return;
                 }
                 nFile++;
             }
             pblocktree->WriteReindexing(false);
             fReindex = false;
             LogPrintf("Reindexing finished\n");
             // To avoid ending up in a situation without genesis block, re-try
             // initializing (no-op if reindexing worked):
             LoadGenesisBlock(chainParams);
         }
 
         // -loadblock=
         for (const fs::path &path : vImportFiles) {
             FILE *file = fsbridge::fopen(path, "rb");
             if (file) {
                 LogPrintf("Importing blocks file %s...\n", path.string());
                 LoadExternalBlockFile(config, file);
                 if (ShutdownRequested()) {
                     LogPrintf("Shutdown requested. Exit %s\n", __func__);
                     return;
                 }
             } else {
                 LogPrintf("Warning: Could not open blocks file %s\n",
                           path.string());
             }
         }
 
         // Reconsider blocks we know are valid. They may have been marked
         // invalid by, for instance, running an outdated version of the node
         // software.
         const MapCheckpoints &checkpoints =
             chainParams.Checkpoints().mapCheckpoints;
         for (const MapCheckpoints::value_type &i : checkpoints) {
             const BlockHash &hash = i.second;
 
             LOCK(cs_main);
             CBlockIndex *pblockindex = LookupBlockIndex(hash);
             if (pblockindex && !pblockindex->nStatus.isValid()) {
                 LogPrintf("Reconsidering checkpointed block %s ...\n",
                           hash.GetHex());
                 ResetBlockFailureFlags(pblockindex);
             }
         }
 
         // scan for better chains in the block chain database, that are not yet
         // connected in the active best chain
 
         // We can't hold cs_main during ActivateBestChain even though we're
         // accessing the chainman unique_ptrs since ABC requires us not to be
         // holding cs_main, so retrieve the relevant pointers before the ABC
         // call.
         for (CChainState *chainstate :
              WITH_LOCK(::cs_main, return chainman.GetAll())) {
             BlockValidationState state;
             if (!chainstate->ActivateBestChain(config, state, nullptr)) {
                 LogPrintf("Failed to connect best block (%s)\n",
                           state.ToString());
                 StartShutdown();
                 return;
             }
         }
 
         if (args.GetBoolArg("-stopafterblockimport",
                             DEFAULT_STOPAFTERBLOCKIMPORT)) {
             LogPrintf("Stopping after block import\n");
             StartShutdown();
             return;
         }
     } // End scope of CImportingNow
     chainman.ActiveChainstate().LoadMempool(config, args);
 }
 
 /** Sanity checks
  *  Ensure that Bitcoin is running in a usable environment with all
  *  necessary library support.
  */
 static bool InitSanityCheck() {
     if (!ECC_InitSanityCheck()) {
         return InitError(Untranslated(
             "Elliptic curve cryptography sanity check failure. Aborting."));
     }
 
     if (!glibcxx_sanity_test()) {
         return false;
     }
 
     if (!Random_SanityCheck()) {
         return InitError(Untranslated(
             "OS cryptographic RNG sanity check failure. Aborting."));
     }
 
     return true;
 }
 
 static bool AppInitServers(Config &config,
                            HTTPRPCRequestProcessor &httpRPCRequestProcessor,
                            NodeContext &node) {
     const ArgsManager &args = *Assert(node.args);
     RPCServerSignals::OnStarted(&OnRPCStarted);
     RPCServerSignals::OnStopped(&OnRPCStopped);
     if (!InitHTTPServer(config)) {
         return false;
     }
 
     StartRPC();
     node.rpc_interruption_point = RpcInterruptionPoint;
 
     if (!StartHTTPRPC(httpRPCRequestProcessor)) {
         return false;
     }
     if (args.GetBoolArg("-rest", DEFAULT_REST_ENABLE)) {
         StartREST(httpRPCRequestProcessor.context);
     }
 
     StartHTTPServer();
     return true;
 }
 
 // Parameter interaction based on rules
 void InitParameterInteraction(ArgsManager &args) {
     // when specifying an explicit binding address, you want to listen on it
     // even when -connect or -proxy is specified.
     if (args.IsArgSet("-bind")) {
         if (args.SoftSetBoolArg("-listen", true)) {
             LogPrintf(
                 "%s: parameter interaction: -bind set -> setting -listen=1\n",
                 __func__);
         }
     }
     if (args.IsArgSet("-whitebind")) {
         if (args.SoftSetBoolArg("-listen", true)) {
             LogPrintf("%s: parameter interaction: -whitebind set -> setting "
                       "-listen=1\n",
                       __func__);
         }
     }
 
     if (args.IsArgSet("-connect")) {
         // when only connecting to trusted nodes, do not seed via DNS, or listen
         // by default.
         if (args.SoftSetBoolArg("-dnsseed", false)) {
             LogPrintf("%s: parameter interaction: -connect set -> setting "
                       "-dnsseed=0\n",
                       __func__);
         }
         if (args.SoftSetBoolArg("-listen", false)) {
             LogPrintf("%s: parameter interaction: -connect set -> setting "
                       "-listen=0\n",
                       __func__);
         }
     }
 
     if (args.IsArgSet("-proxy")) {
         // to protect privacy, do not listen by default if a default proxy
         // server is specified.
         if (args.SoftSetBoolArg("-listen", false)) {
             LogPrintf(
                 "%s: parameter interaction: -proxy set -> setting -listen=0\n",
                 __func__);
         }
         // to protect privacy, do not use UPNP when a proxy is set. The user may
         // still specify -listen=1 to listen locally, so don't rely on this
         // happening through -listen below.
         if (args.SoftSetBoolArg("-upnp", false)) {
             LogPrintf(
                 "%s: parameter interaction: -proxy set -> setting -upnp=0\n",
                 __func__);
         }
         // to protect privacy, do not discover addresses by default
         if (args.SoftSetBoolArg("-discover", false)) {
             LogPrintf("%s: parameter interaction: -proxy set -> setting "
                       "-discover=0\n",
                       __func__);
         }
     }
 
     if (!args.GetBoolArg("-listen", DEFAULT_LISTEN)) {
         // do not map ports or try to retrieve public IP when not listening
         // (pointless)
         if (args.SoftSetBoolArg("-upnp", false)) {
             LogPrintf(
                 "%s: parameter interaction: -listen=0 -> setting -upnp=0\n",
                 __func__);
         }
         if (args.SoftSetBoolArg("-discover", false)) {
             LogPrintf(
                 "%s: parameter interaction: -listen=0 -> setting -discover=0\n",
                 __func__);
         }
         if (args.SoftSetBoolArg("-listenonion", false)) {
             LogPrintf("%s: parameter interaction: -listen=0 -> setting "
                       "-listenonion=0\n",
                       __func__);
         }
     }
 
     if (args.IsArgSet("-externalip")) {
         // if an explicit public IP is specified, do not try to find others
         if (args.SoftSetBoolArg("-discover", false)) {
             LogPrintf("%s: parameter interaction: -externalip set -> setting "
                       "-discover=0\n",
                       __func__);
         }
     }
 
     // disable whitelistrelay in blocksonly mode
     if (args.GetBoolArg("-blocksonly", DEFAULT_BLOCKSONLY)) {
         if (args.SoftSetBoolArg("-whitelistrelay", false)) {
             LogPrintf("%s: parameter interaction: -blocksonly=1 -> setting "
                       "-whitelistrelay=0\n",
                       __func__);
         }
     }
 
     // Forcing relay from whitelisted hosts implies we will accept relays from
     // them in the first place.
     if (args.GetBoolArg("-whitelistforcerelay", DEFAULT_WHITELISTFORCERELAY)) {
         if (args.SoftSetBoolArg("-whitelistrelay", true)) {
             LogPrintf("%s: parameter interaction: -whitelistforcerelay=1 -> "
                       "setting -whitelistrelay=1\n",
                       __func__);
         }
     }
 }
 
 /**
  * Initialize global loggers.
  *
  * Note that this is called very early in the process lifetime, so you should be
  * careful about what global state you rely on here.
  */
 void InitLogging(const ArgsManager &args) {
     LogInstance().m_print_to_file = !args.IsArgNegated("-debuglogfile");
     LogInstance().m_file_path =
         AbsPathForConfigVal(args.GetArg("-debuglogfile", DEFAULT_DEBUGLOGFILE));
 
     LogInstance().m_print_to_console =
         args.GetBoolArg("-printtoconsole", !args.GetBoolArg("-daemon", false));
     LogInstance().m_log_timestamps =
         args.GetBoolArg("-logtimestamps", DEFAULT_LOGTIMESTAMPS);
     LogInstance().m_log_time_micros =
         args.GetBoolArg("-logtimemicros", DEFAULT_LOGTIMEMICROS);
 #ifdef HAVE_THREAD_LOCAL
     LogInstance().m_log_threadnames =
         args.GetBoolArg("-logthreadnames", DEFAULT_LOGTHREADNAMES);
 #endif
 
     fLogIPs = args.GetBoolArg("-logips", DEFAULT_LOGIPS);
 
     std::string version_string = FormatFullVersion();
 #ifdef DEBUG
     version_string += " (debug build)";
 #else
     version_string += " (release build)";
 #endif
     LogPrintf("%s version %s\n", CLIENT_NAME, version_string);
 }
 
 namespace { // Variables internal to initialization process only
 
 int nMaxConnections;
 int nUserMaxConnections;
 int nFD;
 ServiceFlags nLocalServices = ServiceFlags(NODE_NETWORK | NODE_NETWORK_LIMITED);
 int64_t peer_connect_timeout;
 std::set<BlockFilterType> g_enabled_filter_types;
 
 } // namespace
 
 [[noreturn]] static void new_handler_terminate() {
     // Rather than throwing std::bad-alloc if allocation fails, terminate
     // immediately to (try to) avoid chain corruption. Since LogPrintf may
     // itself allocate memory, set the handler directly to terminate first.
     std::set_new_handler(std::terminate);
     LogPrintf("Error: Out of memory. Terminating.\n");
 
     // The log was successful, terminate now.
     std::terminate();
 };
 
 bool AppInitBasicSetup(ArgsManager &args) {
 // Step 1: setup
 #ifdef _MSC_VER
     // Turn off Microsoft heap dump noise
     _CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE);
     _CrtSetReportFile(_CRT_WARN, CreateFileA("NUL", GENERIC_WRITE, 0, nullptr,
                                              OPEN_EXISTING, 0, 0));
     // Disable confusing "helpful" text message on abort, Ctrl-C
     _set_abort_behavior(0, _WRITE_ABORT_MSG | _CALL_REPORTFAULT);
 #endif
 #ifdef WIN32
     // Enable Data Execution Prevention (DEP)
     SetProcessDEPPolicy(PROCESS_DEP_ENABLE);
 #endif
 
     if (!SetupNetworking()) {
         return InitError(Untranslated("Initializing networking failed"));
     }
 
 #ifndef WIN32
     if (!args.GetBoolArg("-sysperms", false)) {
         umask(077);
     }
 
     // Clean shutdown on SIGTERM
     registerSignalHandler(SIGTERM, HandleSIGTERM);
     registerSignalHandler(SIGINT, HandleSIGTERM);
 
     // Reopen debug.log on SIGHUP
     registerSignalHandler(SIGHUP, HandleSIGHUP);
 
     // Ignore SIGPIPE, otherwise it will bring the daemon down if the client
     // closes unexpectedly
     signal(SIGPIPE, SIG_IGN);
 #else
     SetConsoleCtrlHandler(consoleCtrlHandler, true);
 #endif
 
     std::set_new_handler(new_handler_terminate);
 
     return true;
 }
 
 bool AppInitParameterInteraction(Config &config, const ArgsManager &args) {
     const CChainParams &chainparams = config.GetChainParams();
     // Step 2: parameter interactions
 
     // also see: InitParameterInteraction()
 
     // Error if network-specific options (-addnode, -connect, etc) are
     // specified in default section of config file, but not overridden
     // on the command line or in this network's section of the config file.
     std::string network = args.GetChainName();
     bilingual_str errors;
     for (const auto &arg : args.GetUnsuitableSectionOnlyArgs()) {
         errors += strprintf(_("Config setting for %s only applied on %s "
                               "network when in [%s] section.") +
                                 Untranslated("\n"),
                             arg, network, network);
     }
 
     if (!errors.empty()) {
         return InitError(errors);
     }
 
     // Warn if unrecognized section name are present in the config file.
     bilingual_str warnings;
     for (const auto &section : args.GetUnrecognizedSections()) {
         warnings += strprintf(Untranslated("%s:%i ") +
                                   _("Section [%s] is not recognized.") +
                                   Untranslated("\n"),
                               section.m_file, section.m_line, section.m_name);
     }
 
     if (!warnings.empty()) {
         InitWarning(warnings);
     }
 
     if (!fs::is_directory(GetBlocksDir())) {
         return InitError(
             strprintf(_("Specified blocks directory \"%s\" does not exist."),
                       args.GetArg("-blocksdir", "")));
     }
 
     // parse and validate enabled filter types
     std::string blockfilterindex_value =
         args.GetArg("-blockfilterindex", DEFAULT_BLOCKFILTERINDEX);
     if (blockfilterindex_value == "" || blockfilterindex_value == "1") {
         g_enabled_filter_types = AllBlockFilterTypes();
     } else if (blockfilterindex_value != "0") {
         const std::vector<std::string> names =
             args.GetArgs("-blockfilterindex");
         for (const auto &name : names) {
             BlockFilterType filter_type;
             if (!BlockFilterTypeByName(name, filter_type)) {
                 return InitError(
                     strprintf(_("Unknown -blockfilterindex value %s."), name));
             }
             g_enabled_filter_types.insert(filter_type);
         }
     }
 
     // Signal NODE_COMPACT_FILTERS if peerblockfilters and basic filters index
     // are both enabled.
     if (gArgs.GetBoolArg("-peerblockfilters", DEFAULT_PEERBLOCKFILTERS)) {
         if (g_enabled_filter_types.count(BlockFilterType::BASIC) != 1) {
             return InitError(
                 _("Cannot set -peerblockfilters without -blockfilterindex."));
         }
 
         nLocalServices = ServiceFlags(nLocalServices | NODE_COMPACT_FILTERS);
     }
 
     // if using block pruning, then disallow txindex
     if (args.GetArg("-prune", 0)) {
         if (args.GetBoolArg("-txindex", DEFAULT_TXINDEX)) {
             return InitError(_("Prune mode is incompatible with -txindex."));
         }
         if (!g_enabled_filter_types.empty()) {
             return InitError(
                 _("Prune mode is incompatible with -blockfilterindex."));
         }
     }
 
     // -bind and -whitebind can't be set when not listening
     size_t nUserBind =
         args.GetArgs("-bind").size() + args.GetArgs("-whitebind").size();
     if (nUserBind != 0 && !args.GetBoolArg("-listen", DEFAULT_LISTEN)) {
         return InitError(Untranslated(
             "Cannot set -bind or -whitebind together with -listen=0"));
     }
 
     // Make sure enough file descriptors are available
     int nBind = std::max(nUserBind, size_t(1));
     nUserMaxConnections =
         args.GetArg("-maxconnections", DEFAULT_MAX_PEER_CONNECTIONS);
     nMaxConnections = std::max(nUserMaxConnections, 0);
 
     // Trim requested connection counts, to fit into system limitations
     // <int> in std::min<int>(...) to work around FreeBSD compilation issue
     // described in #2695
     nFD = RaiseFileDescriptorLimit(nMaxConnections + nBind +
                                    MIN_CORE_FILEDESCRIPTORS +
                                    MAX_ADDNODE_CONNECTIONS);
 #ifdef USE_POLL
     int fd_max = nFD;
 #else
     int fd_max = FD_SETSIZE;
 #endif
     nMaxConnections =
         std::max(std::min<int>(nMaxConnections, fd_max - nBind -
                                                     MIN_CORE_FILEDESCRIPTORS -
                                                     MAX_ADDNODE_CONNECTIONS),
                  0);
     if (nFD < MIN_CORE_FILEDESCRIPTORS) {
         return InitError(_("Not enough file descriptors available."));
     }
     nMaxConnections =
         std::min(nFD - MIN_CORE_FILEDESCRIPTORS - MAX_ADDNODE_CONNECTIONS,
                  nMaxConnections);
 
     if (nMaxConnections < nUserMaxConnections) {
         // Not categorizing as "Warning" because this is the normal behavior for
         // platforms using the select() interface for which FD_SETSIZE is
         // usually 1024.
         LogPrintf("Reducing -maxconnections from %d to %d, because of system "
                   "limitations.\n",
                   nUserMaxConnections, nMaxConnections);
     }
 
     // Step 3: parameter-to-internal-flags
     if (args.IsArgSet("-debug")) {
         // Special-case: if -debug=0/-nodebug is set, turn off debugging
         // messages
         const std::vector<std::string> &categories = args.GetArgs("-debug");
         if (std::none_of(
                 categories.begin(), categories.end(),
                 [](std::string cat) { return cat == "0" || cat == "none"; })) {
             for (const auto &cat : categories) {
                 if (!LogInstance().EnableCategory(cat)) {
                     InitWarning(
                         strprintf(_("Unsupported logging category %s=%s."),
                                   "-debug", cat));
                 }
             }
         }
     }
 
     // Now remove the logging categories which were explicitly excluded
     for (const std::string &cat : args.GetArgs("-debugexclude")) {
         if (!LogInstance().DisableCategory(cat)) {
             InitWarning(strprintf(_("Unsupported logging category %s=%s."),
                                   "-debugexclude", cat));
         }
     }
 
     fCheckBlockIndex = args.GetBoolArg("-checkblockindex",
                                        chainparams.DefaultConsistencyChecks());
     fCheckpointsEnabled =
         args.GetBoolArg("-checkpoints", DEFAULT_CHECKPOINTS_ENABLED);
     if (fCheckpointsEnabled) {
         LogPrintf("Checkpoints will be verified.\n");
     } else {
         LogPrintf("Skipping checkpoint verification.\n");
     }
 
     hashAssumeValid = BlockHash::fromHex(
         args.GetArg("-assumevalid",
                     chainparams.GetConsensus().defaultAssumeValid.GetHex()));
     if (!hashAssumeValid.IsNull()) {
         LogPrintf("Assuming ancestors of block %s have valid signatures.\n",
                   hashAssumeValid.GetHex());
     } else {
         LogPrintf("Validating signatures for all blocks.\n");
     }
 
     if (args.IsArgSet("-minimumchainwork")) {
         const std::string minChainWorkStr =
             args.GetArg("-minimumchainwork", "");
         if (!IsHexNumber(minChainWorkStr)) {
             return InitError(strprintf(
                 Untranslated(
                     "Invalid non-hex (%s) minimum chain work value specified"),
                 minChainWorkStr));
         }
         nMinimumChainWork = UintToArith256(uint256S(minChainWorkStr));
     } else {
         nMinimumChainWork =
             UintToArith256(chainparams.GetConsensus().nMinimumChainWork);
     }
     LogPrintf("Setting nMinimumChainWork=%s\n", nMinimumChainWork.GetHex());
     if (nMinimumChainWork <
         UintToArith256(chainparams.GetConsensus().nMinimumChainWork)) {
         LogPrintf("Warning: nMinimumChainWork set below default value of %s\n",
                   chainparams.GetConsensus().nMinimumChainWork.GetHex());
     }
 
     // mempool limits
     int64_t nMempoolSizeMax =
         args.GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000;
     int64_t nMempoolSizeMin =
         args.GetArg("-limitdescendantsize", DEFAULT_DESCENDANT_SIZE_LIMIT) *
         1000 * 40;
     if (nMempoolSizeMax < 0 || nMempoolSizeMax < nMempoolSizeMin) {
         return InitError(strprintf(_("-maxmempool must be at least %d MB"),
                                    std::ceil(nMempoolSizeMin / 1000000.0)));
     }
 
     // Configure excessive block size.
     const int64_t nProposedExcessiveBlockSize =
         args.GetArg("-excessiveblocksize", DEFAULT_MAX_BLOCK_SIZE);
     if (nProposedExcessiveBlockSize <= 0 ||
         !config.SetMaxBlockSize(nProposedExcessiveBlockSize)) {
         return InitError(
             _("Excessive block size must be > 1,000,000 bytes (1MB)"));
     }
 
     // Check blockmaxsize does not exceed maximum accepted block size.
     const int64_t nProposedMaxGeneratedBlockSize =
         args.GetArg("-blockmaxsize", DEFAULT_MAX_GENERATED_BLOCK_SIZE);
     if (nProposedMaxGeneratedBlockSize <= 0) {
         return InitError(_("Max generated block size must be greater than 0"));
     }
     if (uint64_t(nProposedMaxGeneratedBlockSize) > config.GetMaxBlockSize()) {
         return InitError(_("Max generated block size (blockmaxsize) cannot "
                            "exceed the excessive block size "
                            "(excessiveblocksize)"));
     }
 
     // block pruning; get the amount of disk space (in MiB) to allot for block &
     // undo files
     int64_t nPruneArg = args.GetArg("-prune", 0);
     if (nPruneArg < 0) {
         return InitError(
             _("Prune cannot be configured with a negative value."));
     }
     nPruneTarget = (uint64_t)nPruneArg * 1024 * 1024;
     if (nPruneArg == 1) {
         // manual pruning: -prune=1
         LogPrintf("Block pruning enabled.  Use RPC call "
                   "pruneblockchain(height) to manually prune block and undo "
                   "files.\n");
         nPruneTarget = std::numeric_limits<uint64_t>::max();
         fPruneMode = true;
     } else if (nPruneTarget) {
         if (nPruneTarget < MIN_DISK_SPACE_FOR_BLOCK_FILES) {
             return InitError(
                 strprintf(_("Prune configured below the minimum of %d MiB. "
                             "Please use a higher number."),
                           MIN_DISK_SPACE_FOR_BLOCK_FILES / 1024 / 1024));
         }
         LogPrintf("Prune configured to target %u MiB on disk for block and "
                   "undo files.\n",
                   nPruneTarget / 1024 / 1024);
         fPruneMode = true;
     }
 
     nConnectTimeout = args.GetArg("-timeout", DEFAULT_CONNECT_TIMEOUT);
     if (nConnectTimeout <= 0) {
         nConnectTimeout = DEFAULT_CONNECT_TIMEOUT;
     }
 
     peer_connect_timeout =
         args.GetArg("-peertimeout", DEFAULT_PEER_CONNECT_TIMEOUT);
     if (peer_connect_timeout <= 0) {
         return InitError(Untranslated(
             "peertimeout cannot be configured with a negative value."));
     }
 
     // Obtain the amount to charge excess UTXO
     if (args.IsArgSet("-excessutxocharge")) {
         Amount n = Amount::zero();
         auto parsed = ParseMoney(args.GetArg("-excessutxocharge", ""), n);
         if (!parsed || Amount::zero() > n) {
             return InitError(AmountErrMsg(
                 "excessutxocharge", args.GetArg("-excessutxocharge", "")));
         }
         config.SetExcessUTXOCharge(n);
     } else {
         config.SetExcessUTXOCharge(DEFAULT_UTXO_FEE);
     }
 
     if (args.IsArgSet("-minrelaytxfee")) {
         Amount n = Amount::zero();
         auto parsed = ParseMoney(args.GetArg("-minrelaytxfee", ""), n);
         if (!parsed || n == Amount::zero()) {
             return InitError(AmountErrMsg("minrelaytxfee",
                                           args.GetArg("-minrelaytxfee", "")));
         }
         // High fee check is done afterward in CWallet::CreateWalletFromFile()
         ::minRelayTxFee = CFeeRate(n);
     }
 
     // Sanity check argument for min fee for including tx in block
     // TODO: Harmonize which arguments need sanity checking and where that
     // happens.
     if (args.IsArgSet("-blockmintxfee")) {
         Amount n = Amount::zero();
         if (!ParseMoney(args.GetArg("-blockmintxfee", ""), n)) {
             return InitError(AmountErrMsg("blockmintxfee",
                                           args.GetArg("-blockmintxfee", "")));
         }
     }
 
     // Feerate used to define dust.  Shouldn't be changed lightly as old
     // implementations may inadvertently create non-standard transactions.
     if (args.IsArgSet("-dustrelayfee")) {
         Amount n = Amount::zero();
         auto parsed = ParseMoney(args.GetArg("-dustrelayfee", ""), n);
         if (!parsed || Amount::zero() == n) {
             return InitError(
                 AmountErrMsg("dustrelayfee", args.GetArg("-dustrelayfee", "")));
         }
         dustRelayFee = CFeeRate(n);
     }
 
     fRequireStandard =
         !args.GetBoolArg("-acceptnonstdtxn", !chainparams.RequireStandard());
     if (!chainparams.IsTestChain() && !fRequireStandard) {
         return InitError(strprintf(
             Untranslated(
                 "acceptnonstdtxn is not currently supported for %s chain"),
             chainparams.NetworkIDString()));
     }
     nBytesPerSigOp = args.GetArg("-bytespersigop", nBytesPerSigOp);
 
     if (!g_wallet_init_interface.ParameterInteraction()) {
         return false;
     }
 
     fIsBareMultisigStd =
         args.GetBoolArg("-permitbaremultisig", DEFAULT_PERMIT_BAREMULTISIG);
     fAcceptDatacarrier =
         args.GetBoolArg("-datacarrier", DEFAULT_ACCEPT_DATACARRIER);
 
     // Option to startup with mocktime set (used for regression testing):
     SetMockTime(args.GetArg("-mocktime", 0)); // SetMockTime(0) is a no-op
 
     if (args.GetBoolArg("-peerbloomfilters", DEFAULT_PEERBLOOMFILTERS)) {
         nLocalServices = ServiceFlags(nLocalServices | NODE_BLOOM);
     }
 
     nMaxTipAge = args.GetArg("-maxtipage", DEFAULT_MAX_TIP_AGE);
 
     return true;
 }
 
 static bool LockDataDirectory(bool probeOnly) {
     // Make sure only a single Bitcoin process is using the data directory.
     fs::path datadir = GetDataDir();
     if (!DirIsWritable(datadir)) {
         return InitError(strprintf(
             _("Cannot write to data directory '%s'; check permissions."),
             datadir.string()));
     }
     if (!LockDirectory(datadir, ".lock", probeOnly)) {
         return InitError(strprintf(_("Cannot obtain a lock on data directory "
                                      "%s. %s is probably already running."),
                                    datadir.string(), PACKAGE_NAME));
     }
     return true;
 }
 
 bool AppInitSanityChecks() {
     // Step 4: sanity checks
 
     // Initialize elliptic curve code
     std::string sha256_algo = SHA256AutoDetect();
     LogPrintf("Using the '%s' SHA256 implementation\n", sha256_algo);
     RandomInit();
     ECC_Start();
     globalVerifyHandle.reset(new ECCVerifyHandle());
 
     // Sanity check
     if (!InitSanityCheck()) {
         return InitError(strprintf(
             _("Initialization sanity check failed. %s is shutting down."),
             PACKAGE_NAME));
     }
 
     // Probe the data directory lock to give an early error message, if possible
     // We cannot hold the data directory lock here, as the forking for daemon()
     // hasn't yet happened, and a fork will cause weird behavior to it.
     return LockDataDirectory(true);
 }
 
 bool AppInitLockDataDirectory() {
     // After daemonization get the data directory lock again and hold on to it
     // until exit. This creates a slight window for a race condition to happen,
     // however this condition is harmless: it will at most make us exit without
     // printing a message to console.
     if (!LockDataDirectory(false)) {
         // Detailed error printed inside LockDataDirectory
         return false;
     }
     return true;
 }
 
+bool AppInitInterfaces(NodeContext &node) {
+    node.chain = interfaces::MakeChain(node, Params());
+    // Create client interfaces for wallets that are supposed to be loaded
+    // according to -wallet and -disablewallet options. This only constructs
+    // the interfaces, it doesn't load wallet data. Wallets actually get loaded
+    // when load() and start() interface methods are called below.
+    g_wallet_init_interface.Construct(node);
+    return true;
+}
+
 bool AppInitMain(Config &config, RPCServer &rpcServer,
                  HTTPRPCRequestProcessor &httpRPCRequestProcessor,
                  NodeContext &node,
                  interfaces::BlockAndHeaderTipInfo *tip_info) {
     // Step 4a: application initialization
     const ArgsManager &args = *Assert(node.args);
     const CChainParams &chainparams = config.GetChainParams();
 
     if (!CreatePidFile(args)) {
         // Detailed error printed inside CreatePidFile().
         return false;
     }
 
     BCLog::Logger &logger = LogInstance();
     if (logger.m_print_to_file) {
         if (args.GetBoolArg("-shrinkdebugfile",
                             logger.DefaultShrinkDebugFile())) {
             // Do this first since it both loads a bunch of debug.log into
             // memory, and because this needs to happen before any other
             // debug.log printing.
             logger.ShrinkDebugFile();
         }
     }
 
     if (!logger.StartLogging()) {
         return InitError(
             strprintf(Untranslated("Could not open debug log file %s"),
                       logger.m_file_path.string()));
     }
 
     if (!logger.m_log_timestamps) {
         LogPrintf("Startup time: %s\n", FormatISO8601DateTime(GetTime()));
     }
     LogPrintf("Default data directory %s\n", GetDefaultDataDir().string());
     LogPrintf("Using data directory %s\n", GetDataDir().string());
 
     // Only log conf file usage message if conf file actually exists.
     fs::path config_file_path =
         GetConfigFile(args.GetArg("-conf", BITCOIN_CONF_FILENAME));
     if (fs::exists(config_file_path)) {
         LogPrintf("Config file: %s\n", config_file_path.string());
     } else if (args.IsArgSet("-conf")) {
         // Warn if no conf file exists at path provided by user
         InitWarning(
             strprintf(_("The specified config file %s does not exist\n"),
                       config_file_path.string()));
     } else {
         // Not categorizing as "Warning" because it's the default behavior
         LogPrintf("Config file: %s (not found, skipping)\n",
                   config_file_path.string());
     }
 
     // Log the config arguments to debug.log
     args.LogArgs();
 
     LogPrintf("Using at most %i automatic connections (%i file descriptors "
               "available)\n",
               nMaxConnections, nFD);
 
     // Warn about relative -datadir path.
     if (args.IsArgSet("-datadir") &&
         !fs::path(args.GetArg("-datadir", "")).is_absolute()) {
         LogPrintf("Warning: relative datadir option '%s' specified, which will "
                   "be interpreted relative to the current working directory "
                   "'%s'. This is fragile, because if bitcoin is started in the "
                   "future from a different location, it will be unable to "
                   "locate the current data files. There could also be data "
                   "loss if bitcoin is started while in a temporary "
                   "directory.\n",
                   args.GetArg("-datadir", ""), fs::current_path().string());
     }
 
     InitSignatureCache();
     InitScriptExecutionCache();
 
     int script_threads = args.GetArg("-par", DEFAULT_SCRIPTCHECK_THREADS);
     if (script_threads <= 0) {
         // -par=0 means autodetect (number of cores - 1 script threads)
         // -par=-n means "leave n cores free" (number of cores - n - 1 script
         // threads)
         script_threads += GetNumCores();
     }
 
     // Subtract 1 because the main thread counts towards the par threads
     script_threads = std::max(script_threads - 1, 0);
 
     // Number of script-checking threads <= MAX_SCRIPTCHECK_THREADS
     script_threads = std::min(script_threads, MAX_SCRIPTCHECK_THREADS);
 
     LogPrintf("Script verification uses %d additional threads\n",
               script_threads);
     if (script_threads >= 1) {
         for (int i = 0; i < script_threads; ++i) {
             threadGroup.create_thread([i]() { return ThreadScriptCheck(i); });
         }
     }
 
     assert(!node.scheduler);
     node.scheduler = std::make_unique<CScheduler>();
 
     // Start the lightweight task scheduler thread
     CScheduler::Function serviceLoop = [&node] {
         node.scheduler->serviceQueue();
     };
     threadGroup.create_thread(std::bind(&TraceThread<CScheduler::Function>,
                                         "scheduler", serviceLoop));
 
     // Gather some entropy once per minute.
     node.scheduler->scheduleEvery(
         [] {
             RandAddPeriodic();
             return true;
         },
         std::chrono::minutes{1});
 
     GetMainSignals().RegisterBackgroundSignalScheduler(*node.scheduler);
 
-    // Create client interfaces for wallets that are supposed to be loaded
-    // according to -wallet and -disablewallet options. This only constructs
-    // the interfaces, it doesn't load wallet data. Wallets actually get loaded
-    // when load() and start() interface methods are called below.
-    g_wallet_init_interface.Construct(node);
-
     /**
      * Register RPC commands regardless of -server setting so they will be
      * available in the GUI RPC console even if external calls are disabled.
      */
     RegisterAllRPCCommands(config, rpcServer, tableRPC);
     for (const auto &client : node.chain_clients) {
         client->registerRpcs();
     }
 #if ENABLE_ZMQ
     RegisterZMQRPCCommands(tableRPC);
 #endif
 
     /**
      * Start the RPC server.  It will be started in "warmup" mode and not
      * process calls yet (but it will verify that the server is there and will
      * be ready later).  Warmup mode will be completed when initialisation is
      * finished.
      */
     if (args.GetBoolArg("-server", false)) {
         uiInterface.InitMessage_connect(SetRPCWarmupStatus);
         if (!AppInitServers(config, httpRPCRequestProcessor, node)) {
             return InitError(
                 _("Unable to start HTTP server. See debug log for details."));
         }
     }
 
     // Step 5: verify wallet database integrity
     for (const auto &client : node.chain_clients) {
         if (!client->verify(chainparams)) {
             return false;
         }
     }
 
     // Step 6: network initialization
 
     // Note that we absolutely cannot open any actual connections
     // until the very end ("start node") as the UTXO/block state
     // is not yet setup and may end up being set up twice if we
     // need to reindex later.
 
     assert(!node.banman);
     node.banman = std::make_unique<BanMan>(
         GetDataDir() / "banlist.dat", config.GetChainParams(), &uiInterface,
         args.GetArg("-bantime", DEFAULT_MISBEHAVING_BANTIME));
     assert(!node.connman);
     node.connman = std::make_unique<CConnman>(
         config, GetRand(std::numeric_limits<uint64_t>::max()),
         GetRand(std::numeric_limits<uint64_t>::max()),
         gArgs.GetBoolArg("-networkactive", true));
 
     // Make mempool generally available in the node context. For example the
     // connection manager, wallet, or RPC threads, which are all started after
     // this, may use it from the node context.
     assert(!node.mempool);
     node.mempool = std::make_unique<CTxMemPool>();
     if (node.mempool) {
         int ratio = std::min<int>(
             std::max<int>(
                 args.GetArg("-checkmempool",
                             chainparams.DefaultConsistencyChecks() ? 1 : 0),
                 0),
             1000000);
         if (ratio != 0) {
             node.mempool->setSanityCheck(1.0 / ratio);
         }
     }
 
     assert(!node.chainman);
     node.chainman = &g_chainman;
     ChainstateManager &chainman = *Assert(node.chainman);
 
     node.peerman.reset(new PeerManager(chainparams, *node.connman,
                                        node.banman.get(), *node.scheduler,
                                        chainman, *node.mempool));
     RegisterValidationInterface(node.peerman.get());
 
     // sanitize comments per BIP-0014, format user agent and check total size
     std::vector<std::string> uacomments;
     for (const std::string &cmt : args.GetArgs("-uacomment")) {
         if (cmt != SanitizeString(cmt, SAFE_CHARS_UA_COMMENT)) {
             return InitError(strprintf(
                 _("User Agent comment (%s) contains unsafe characters."), cmt));
         }
         uacomments.push_back(cmt);
     }
     const std::string client_name = args.GetArg("-uaclientname", CLIENT_NAME);
     const std::string client_version =
         args.GetArg("-uaclientversion", FormatVersion(CLIENT_VERSION));
     if (client_name != SanitizeString(client_name, SAFE_CHARS_UA_COMMENT)) {
         return InitError(strprintf(
             _("-uaclientname (%s) contains invalid characters."), client_name));
     }
     if (client_version !=
         SanitizeString(client_version, SAFE_CHARS_UA_COMMENT)) {
         return InitError(
             strprintf(_("-uaclientversion (%s) contains invalid characters."),
                       client_version));
     }
     const std::string strSubVersion =
         FormatUserAgent(client_name, client_version, uacomments);
     if (strSubVersion.size() > MAX_SUBVERSION_LENGTH) {
         return InitError(strprintf(
             _("Total length of network version string (%i) exceeds maximum "
               "length (%i). Reduce the number or size of uacomments."),
             strSubVersion.size(), MAX_SUBVERSION_LENGTH));
     }
 
     if (args.IsArgSet("-onlynet")) {
         std::set<enum Network> nets;
         for (const std::string &snet : args.GetArgs("-onlynet")) {
             enum Network net = ParseNetwork(snet);
             if (net == NET_UNROUTABLE) {
                 return InitError(strprintf(
                     _("Unknown network specified in -onlynet: '%s'"), snet));
             }
             nets.insert(net);
         }
         for (int n = 0; n < NET_MAX; n++) {
             enum Network net = (enum Network)n;
             if (!nets.count(net)) {
                 SetReachable(net, false);
             }
         }
     }
 
     // Check for host lookup allowed before parsing any network related
     // parameters
     fNameLookup = args.GetBoolArg("-dns", DEFAULT_NAME_LOOKUP);
 
     bool proxyRandomize =
         args.GetBoolArg("-proxyrandomize", DEFAULT_PROXYRANDOMIZE);
     // -proxy sets a proxy for all outgoing network traffic
     // -noproxy (or -proxy=0) as well as the empty string can be used to not set
     // a proxy, this is the default
     std::string proxyArg = args.GetArg("-proxy", "");
     SetReachable(NET_ONION, false);
     if (proxyArg != "" && proxyArg != "0") {
         CService proxyAddr;
         if (!Lookup(proxyArg, proxyAddr, 9050, fNameLookup)) {
             return InitError(strprintf(
                 _("Invalid -proxy address or hostname: '%s'"), proxyArg));
         }
 
         proxyType addrProxy = proxyType(proxyAddr, proxyRandomize);
         if (!addrProxy.IsValid()) {
             return InitError(strprintf(
                 _("Invalid -proxy address or hostname: '%s'"), proxyArg));
         }
 
         SetProxy(NET_IPV4, addrProxy);
         SetProxy(NET_IPV6, addrProxy);
         SetProxy(NET_ONION, addrProxy);
         SetNameProxy(addrProxy);
         // by default, -proxy sets onion as reachable, unless -noonion later
         SetReachable(NET_ONION, true);
     }
 
     // -onion can be used to set only a proxy for .onion, or override normal
     // proxy for .onion addresses.
     // -noonion (or -onion=0) disables connecting to .onion entirely. An empty
     // string is used to not override the onion proxy (in which case it defaults
     // to -proxy set above, or none)
     std::string onionArg = args.GetArg("-onion", "");
     if (onionArg != "") {
         if (onionArg == "0") {
             // Handle -noonion/-onion=0
             SetReachable(NET_ONION, false);
         } else {
             CService onionProxy;
             if (!Lookup(onionArg, onionProxy, 9050, fNameLookup)) {
                 return InitError(strprintf(
                     _("Invalid -onion address or hostname: '%s'"), onionArg));
             }
             proxyType addrOnion = proxyType(onionProxy, proxyRandomize);
             if (!addrOnion.IsValid()) {
                 return InitError(strprintf(
                     _("Invalid -onion address or hostname: '%s'"), onionArg));
             }
             SetProxy(NET_ONION, addrOnion);
             SetReachable(NET_ONION, true);
         }
     }
 
     // see Step 2: parameter interactions for more information about these
     fListen = args.GetBoolArg("-listen", DEFAULT_LISTEN);
     fDiscover = args.GetBoolArg("-discover", true);
     g_relay_txes = !args.GetBoolArg("-blocksonly", DEFAULT_BLOCKSONLY);
 
     for (const std::string &strAddr : args.GetArgs("-externalip")) {
         CService addrLocal;
         if (Lookup(strAddr, addrLocal, GetListenPort(), fNameLookup) &&
             addrLocal.IsValid()) {
             AddLocal(addrLocal, LOCAL_MANUAL);
         } else {
             return InitError(ResolveErrMsg("externalip", strAddr));
         }
     }
 
     // Read asmap file if configured
     if (args.IsArgSet("-asmap")) {
         fs::path asmap_path = fs::path(args.GetArg("-asmap", ""));
         if (asmap_path.empty()) {
             asmap_path = DEFAULT_ASMAP_FILENAME;
         }
         if (!asmap_path.is_absolute()) {
             asmap_path = GetDataDir() / asmap_path;
         }
         if (!fs::exists(asmap_path)) {
             InitError(strprintf(_("Could not find asmap file %s"), asmap_path));
             return false;
         }
         std::vector<bool> asmap = CAddrMan::DecodeAsmap(asmap_path);
         if (asmap.size() == 0) {
             InitError(
                 strprintf(_("Could not parse asmap file %s"), asmap_path));
             return false;
         }
         const uint256 asmap_version = SerializeHash(asmap);
         node.connman->SetAsmap(std::move(asmap));
         LogPrintf("Using asmap version %s for IP bucketing\n",
                   asmap_version.ToString());
     } else {
         LogPrintf("Using /16 prefix for IP bucketing\n");
     }
 
 #if ENABLE_ZMQ
     g_zmq_notification_interface = CZMQNotificationInterface::Create();
 
     if (g_zmq_notification_interface) {
         RegisterValidationInterface(g_zmq_notification_interface);
     }
 #endif
     // unlimited unless -maxuploadtarget is set
     uint64_t nMaxOutboundLimit = 0;
     uint64_t nMaxOutboundTimeframe = MAX_UPLOAD_TIMEFRAME;
 
     if (args.IsArgSet("-maxuploadtarget")) {
         nMaxOutboundLimit =
             args.GetArg("-maxuploadtarget", DEFAULT_MAX_UPLOAD_TARGET) * 1024 *
             1024;
     }
 
     // Step 6.5 (I guess ?): Initialize Avalanche.
     bilingual_str avalancheError;
     g_avalanche = avalanche::Processor::MakeProcessor(
         args, *node.chain, node.connman.get(), avalancheError);
     if (!g_avalanche) {
         InitError(avalancheError);
         return false;
     }
 
     if (isAvalancheEnabled(args) &&
         g_avalanche->isAvalancheServiceAvailable()) {
         nLocalServices = ServiceFlags(nLocalServices | NODE_AVALANCHE);
     }
 
     // Step 7: load block chain
 
     fReindex = args.GetBoolArg("-reindex", false);
     bool fReindexChainState = args.GetBoolArg("-reindex-chainstate", false);
 
     // cache size calculations
     int64_t nTotalCache = (args.GetArg("-dbcache", DEFAULT_DB_CACHE_MB) << 20);
     // total cache cannot be less than MIN_DB_CACHE_MB
     nTotalCache = std::max(nTotalCache, MIN_DB_CACHE_MB << 20);
     // total cache cannot be greater than MAX_DB_CACHE_MB
     nTotalCache = std::min(nTotalCache, MAX_DB_CACHE_MB << 20);
     int64_t nBlockTreeDBCache =
         std::min(nTotalCache / 8, MAX_BLOCK_DB_CACHE_MB << 20);
     nTotalCache -= nBlockTreeDBCache;
     int64_t nTxIndexCache =
         std::min(nTotalCache / 8, args.GetBoolArg("-txindex", DEFAULT_TXINDEX)
                                       ? MAX_TX_INDEX_CACHE_MB << 20
                                       : 0);
     nTotalCache -= nTxIndexCache;
     int64_t filter_index_cache = 0;
     if (!g_enabled_filter_types.empty()) {
         size_t n_indexes = g_enabled_filter_types.size();
         int64_t max_cache =
             std::min(nTotalCache / 8, MAX_FILTER_INDEX_CACHE_MB << 20);
         filter_index_cache = max_cache / n_indexes;
         nTotalCache -= filter_index_cache * n_indexes;
     }
     // use 25%-50% of the remainder for disk cache
     int64_t nCoinDBCache =
         std::min(nTotalCache / 2, (nTotalCache / 4) + (1 << 23));
     // cap total coins db cache
     nCoinDBCache = std::min(nCoinDBCache, MAX_COINS_DB_CACHE_MB << 20);
     nTotalCache -= nCoinDBCache;
     // the rest goes to in-memory cache
     int64_t nCoinCacheUsage = nTotalCache;
     int64_t nMempoolSizeMax =
         args.GetArg("-maxmempool", DEFAULT_MAX_MEMPOOL_SIZE) * 1000000;
     LogPrintf("Cache configuration:\n");
     LogPrintf("* Using %.1f MiB for block index database\n",
               nBlockTreeDBCache * (1.0 / 1024 / 1024));
     if (args.GetBoolArg("-txindex", DEFAULT_TXINDEX)) {
         LogPrintf("* Using %.1f MiB for transaction index database\n",
                   nTxIndexCache * (1.0 / 1024 / 1024));
     }
     for (BlockFilterType filter_type : g_enabled_filter_types) {
         LogPrintf("* Using %.1f MiB for %s block filter index database\n",
                   filter_index_cache * (1.0 / 1024 / 1024),
                   BlockFilterTypeName(filter_type));
     }
     LogPrintf("* Using %.1f MiB for chain state database\n",
               nCoinDBCache * (1.0 / 1024 / 1024));
     LogPrintf("* Using %.1f MiB for in-memory UTXO set (plus up to %.1f MiB of "
               "unused mempool space)\n",
               nCoinCacheUsage * (1.0 / 1024 / 1024),
               nMempoolSizeMax * (1.0 / 1024 / 1024));
 
     bool fLoaded = false;
     while (!fLoaded && !ShutdownRequested()) {
         const bool fReset = fReindex;
         auto is_coinsview_empty =
             [&](CChainState *chainstate) EXCLUSIVE_LOCKS_REQUIRED(::cs_main) {
                 return fReset || fReindexChainState ||
                        chainstate->CoinsTip().GetBestBlock().IsNull();
             };
         bilingual_str strLoadError;
 
         uiInterface.InitMessage(_("Loading block index...").translated);
         do {
             bool failed_verification = false;
             const int64_t load_block_index_start_time = GetTimeMillis();
             try {
                 LOCK(cs_main);
                 chainman.InitializeChainstate(*Assert(node.mempool));
                 chainman.m_total_coinstip_cache = nCoinCacheUsage;
                 chainman.m_total_coinsdb_cache = nCoinDBCache;
 
                 UnloadBlockIndex(node.mempool.get(), chainman);
 
                 // new CBlockTreeDB tries to delete the existing file, which
                 // fails if it's still open from the previous loop. Close it
                 // first:
                 pblocktree.reset();
                 pblocktree.reset(
                     new CBlockTreeDB(nBlockTreeDBCache, false, fReset));
 
                 if (fReset) {
                     pblocktree->WriteReindexing(true);
                     // If we're reindexing in prune mode, wipe away unusable
                     // block files and all undo data files
                     if (fPruneMode) {
                         CleanupBlockRevFiles();
                     }
                 }
 
                 const Consensus::Params &params = chainparams.GetConsensus();
 
                 // If necessary, upgrade from older database format.
                 // This is a no-op if we cleared the block tree db with -reindex
                 // or -reindex-chainstate
                 if (!pblocktree->Upgrade(params)) {
                     strLoadError = _("Error upgrading block index database");
                     break;
                 }
 
                 if (ShutdownRequested()) {
                     break;
                 }
 
                 // LoadBlockIndex will load fHavePruned if we've ever removed a
                 // block file from disk.
                 // Note that it also sets fReindex based on the disk flag!
                 // From here on out fReindex and fReset mean something
                 // different!
                 if (!chainman.LoadBlockIndex(params)) {
                     if (ShutdownRequested()) {
                         break;
                     }
                     strLoadError = _("Error loading block database");
                     break;
                 }
 
                 // If the loaded chain has a wrong genesis, bail out immediately
                 // (we're likely using a testnet datadir, or the other way
                 // around).
                 if (!chainman.BlockIndex().empty() &&
                     !LookupBlockIndex(params.hashGenesisBlock)) {
                     return InitError(_("Incorrect or no genesis block found. "
                                        "Wrong datadir for network?"));
                 }
 
                 // Check for changed -prune state.  What we are concerned about
                 // is a user who has pruned blocks in the past, but is now
                 // trying to run unpruned.
                 if (fHavePruned && !fPruneMode) {
                     strLoadError =
                         _("You need to rebuild the database using -reindex to "
                           "go back to unpruned mode.  This will redownload the "
                           "entire blockchain");
                     break;
                 }
 
                 // At this point blocktree args are consistent with what's on
                 // disk. If we're not mid-reindex (based on disk + args), add a
                 // genesis block on disk (otherwise we use the one already on
                 // disk).
                 // This is called again in ThreadImport after the reindex
                 // completes.
                 if (!fReindex && !LoadGenesisBlock(chainparams)) {
                     strLoadError = _("Error initializing block database");
                     break;
                 }
 
                 // At this point we're either in reindex or we've loaded a
                 // useful block tree into BlockIndex()!
 
                 bool failed_chainstate_init = false;
 
                 for (CChainState *chainstate : chainman.GetAll()) {
                     LogPrintf("Initializing chainstate %s\n",
                               chainstate->ToString());
                     chainstate->InitCoinsDB(
                         /* cache_size_bytes */ nCoinDBCache,
                         /* in_memory */ false,
                         /* should_wipe */ fReset || fReindexChainState);
 
                     chainstate->CoinsErrorCatcher().AddReadErrCallback([]() {
                         uiInterface.ThreadSafeMessageBox(
                             _("Error reading from database, shutting down."),
                             "", CClientUIInterface::MSG_ERROR);
                     });
 
                     // If necessary, upgrade from older database format.
                     // This is a no-op if we cleared the coinsviewdb with
                     // -reindex or -reindex-chainstate
                     if (!chainstate->CoinsDB().Upgrade()) {
                         strLoadError = _("Error upgrading chainstate database");
                         failed_chainstate_init = true;
                         break;
                     }
 
                     // ReplayBlocks is a no-op if we cleared the coinsviewdb
                     // with -reindex or -reindex-chainstate
                     if (!chainstate->ReplayBlocks(params)) {
                         strLoadError = _(
                             "Unable to replay blocks. You will need to rebuild "
                             "the database using -reindex-chainstate.");
                         failed_chainstate_init = true;
                         break;
                     }
 
                     // The on-disk coinsdb is now in a good state, create the
                     // cache
                     chainstate->InitCoinsCache(nCoinCacheUsage);
                     assert(chainstate->CanFlushToDisk());
 
                     if (!is_coinsview_empty(chainstate)) {
                         // LoadChainTip initializes the chain based on
                         // CoinsTip()'s best block
                         if (!chainstate->LoadChainTip(chainparams)) {
                             strLoadError =
                                 _("Error initializing block database");
                             failed_chainstate_init = true;
                             // out of the per-chainstate loop
                             break;
                         }
                         assert(chainstate->m_chain.Tip() != nullptr);
                     }
                 }
 
                 if (failed_chainstate_init) {
                     // out of the chainstate activation do-while
                     break;
                 }
 
                 for (CChainState *chainstate : chainman.GetAll()) {
                     if (!is_coinsview_empty(chainstate)) {
                         uiInterface.InitMessage(
                             _("Verifying blocks...").translated);
                         if (fHavePruned &&
                             args.GetArg("-checkblocks", DEFAULT_CHECKBLOCKS) >
                                 MIN_BLOCKS_TO_KEEP) {
                             LogPrintf(
                                 "Prune: pruned datadir may not have more than "
                                 "%d blocks; only checking available blocks\n",
                                 MIN_BLOCKS_TO_KEEP);
                         }
 
                         const CBlockIndex *tip = chainstate->m_chain.Tip();
                         RPCNotifyBlockChange(tip);
                         if (tip &&
                             tip->nTime > GetAdjustedTime() + 2 * 60 * 60) {
                             strLoadError =
                                 _("The block database contains a block which "
                                   "appears to be from the future. "
                                   "This may be due to your computer's date and "
                                   "time being set incorrectly. "
                                   "Only rebuild the block database if you are "
                                   "sure that your computer's date and time are "
                                   "correct");
                             failed_verification = true;
                             break;
                         }
 
                         // Only verify the DB of the active chainstate. This is
                         // fixed in later work when we allow VerifyDB to be
                         // parameterized by chainstate.
                         if (&::ChainstateActive() == chainstate &&
                             !CVerifyDB().VerifyDB(
                                 config, &chainstate->CoinsDB(),
                                 args.GetArg("-checklevel", DEFAULT_CHECKLEVEL),
                                 args.GetArg("-checkblocks",
                                             DEFAULT_CHECKBLOCKS))) {
                             strLoadError =
                                 _("Corrupted block database detected");
                             failed_verification = true;
                             break;
                         }
                     }
                 }
             } catch (const std::exception &e) {
                 LogPrintf("%s\n", e.what());
                 strLoadError = _("Error opening block database");
                 failed_verification = true;
                 break;
             }
 
             if (!failed_verification) {
                 fLoaded = true;
                 LogPrintf(" block index %15dms\n",
                           GetTimeMillis() - load_block_index_start_time);
             }
         } while (false);
 
         if (!fLoaded && !ShutdownRequested()) {
             // first suggest a reindex
             if (!fReset) {
                 bool fRet = uiInterface.ThreadSafeQuestion(
                     strLoadError + Untranslated(".\n\n") +
                         _("Do you want to rebuild the block database now?"),
                     strLoadError.original +
                         ".\nPlease restart with -reindex or "
                         "-reindex-chainstate to recover.",
                     "",
                     CClientUIInterface::MSG_ERROR |
                         CClientUIInterface::BTN_ABORT);
                 if (fRet) {
                     fReindex = true;
                     AbortShutdown();
                 } else {
                     LogPrintf("Aborted block database rebuild. Exiting.\n");
                     return false;
                 }
             } else {
                 return InitError(strLoadError);
             }
         }
     }
 
     // As LoadBlockIndex can take several minutes, it's possible the user
     // requested to kill the GUI during the last operation. If so, exit.
     // As the program has not fully started yet, Shutdown() is possibly
     // overkill.
     if (ShutdownRequested()) {
         LogPrintf("Shutdown requested. Exiting.\n");
         return false;
     }
 
     // Encoded addresses using cashaddr instead of base58.
     // We do this by default to avoid confusion with BTC addresses.
     config.SetCashAddrEncoding(args.GetBoolArg("-usecashaddr", true));
 
     // Step 8: load indexers
     if (args.GetBoolArg("-txindex", DEFAULT_TXINDEX)) {
         g_txindex = std::make_unique<TxIndex>(nTxIndexCache, false, fReindex);
         g_txindex->Start();
     }
 
     for (const auto &filter_type : g_enabled_filter_types) {
         InitBlockFilterIndex(filter_type, filter_index_cache, false, fReindex);
         GetBlockFilterIndex(filter_type)->Start();
     }
 
     // Step 9: load wallet
     for (const auto &client : node.chain_clients) {
         if (!client->load(chainparams)) {
             return false;
         }
     }
 
     // Step 10: data directory maintenance
 
     // if pruning, unset the service bit and perform the initial blockstore
     // prune after any wallet rescanning has taken place.
     if (fPruneMode) {
         LogPrintf("Unsetting NODE_NETWORK on prune mode\n");
         nLocalServices = ServiceFlags(nLocalServices & ~NODE_NETWORK);
         if (!fReindex) {
             LOCK(cs_main);
             for (CChainState *chainstate : chainman.GetAll()) {
                 uiInterface.InitMessage(_("Pruning blockstore...").translated);
                 chainstate->PruneAndFlush();
             }
         }
     }
 
     // Step 11: import blocks
     if (!CheckDiskSpace(GetDataDir())) {
         InitError(
             strprintf(_("Error: Disk space is low for %s"), GetDataDir()));
         return false;
     }
     if (!CheckDiskSpace(GetBlocksDir())) {
         InitError(
             strprintf(_("Error: Disk space is low for %s"), GetBlocksDir()));
         return false;
     }
 
     // Either install a handler to notify us when genesis activates, or set
     // fHaveGenesis directly.
     // No locking, as this happens before any background thread is started.
     boost::signals2::connection block_notify_genesis_wait_connection;
     if (::ChainActive().Tip() == nullptr) {
         block_notify_genesis_wait_connection =
             uiInterface.NotifyBlockTip_connect(
                 std::bind(BlockNotifyGenesisWait, std::placeholders::_2));
     } else {
         fHaveGenesis = true;
     }
 
 #if defined(HAVE_SYSTEM)
     if (args.IsArgSet("-blocknotify")) {
         const std::string block_notify = args.GetArg("-blocknotify", "");
         const auto BlockNotifyCallback = [block_notify](
                                              SynchronizationState sync_state,
                                              const CBlockIndex *pBlockIndex) {
             if (sync_state != SynchronizationState::POST_INIT || !pBlockIndex) {
                 return;
             }
 
             std::string strCmd = block_notify;
             if (!strCmd.empty()) {
                 boost::replace_all(strCmd, "%s",
                                    pBlockIndex->GetBlockHash().GetHex());
                 std::thread t(runCommand, strCmd);
                 // thread runs free
                 t.detach();
             }
         };
         uiInterface.NotifyBlockTip_connect(BlockNotifyCallback);
     }
 #endif
 
     std::vector<fs::path> vImportFiles;
     for (const std::string &strFile : args.GetArgs("-loadblock")) {
         vImportFiles.push_back(strFile);
     }
 
     g_load_block =
         std::thread(&TraceThread<std::function<void()>>, "loadblk",
                     [=, &config, &chainman, &args] {
                         ThreadImport(config, chainman, vImportFiles, args);
                     });
 
     // Wait for genesis block to be processed
     {
         WAIT_LOCK(g_genesis_wait_mutex, lock);
         // We previously could hang here if StartShutdown() is called prior to
         // ThreadImport getting started, so instead we just wait on a timer to
         // check ShutdownRequested() regularly.
         while (!fHaveGenesis && !ShutdownRequested()) {
             g_genesis_wait_cv.wait_for(lock, std::chrono::milliseconds(500));
         }
         block_notify_genesis_wait_connection.disconnect();
     }
 
     if (ShutdownRequested()) {
         return false;
     }
 
     // Step 12: start node
 
     int chain_active_height;
 
     //// debug print
     {
         LOCK(cs_main);
         LogPrintf("block tree size = %u\n", chainman.BlockIndex().size());
         chain_active_height = chainman.ActiveChain().Height();
         if (tip_info) {
             tip_info->block_height = chain_active_height;
             tip_info->block_time =
                 chainman.ActiveChain().Tip()
                     ? chainman.ActiveChain().Tip()->GetBlockTime()
                     : Params().GenesisBlock().GetBlockTime();
             tip_info->verification_progress = GuessVerificationProgress(
                 Params().TxData(), chainman.ActiveChain().Tip());
         }
         if (tip_info && ::pindexBestHeader) {
             tip_info->header_height = ::pindexBestHeader->nHeight;
             tip_info->header_time = ::pindexBestHeader->GetBlockTime();
         }
     }
     LogPrintf("nBestHeight = %d\n", chain_active_height);
 
     if (args.GetBoolArg("-listenonion", DEFAULT_LISTEN_ONION)) {
         StartTorControl();
     }
 
     Discover();
 
     // Map ports with UPnP
     if (args.GetBoolArg("-upnp", DEFAULT_UPNP)) {
         StartMapPort();
     }
 
     CConnman::Options connOptions;
     connOptions.nLocalServices = nLocalServices;
     connOptions.nMaxConnections = nMaxConnections;
     connOptions.m_max_outbound_full_relay = std::min(
         MAX_OUTBOUND_FULL_RELAY_CONNECTIONS, connOptions.nMaxConnections);
     connOptions.m_max_outbound_block_relay = std::min(
         MAX_BLOCK_RELAY_ONLY_CONNECTIONS,
         connOptions.nMaxConnections - connOptions.m_max_outbound_full_relay);
     connOptions.nMaxAddnode = MAX_ADDNODE_CONNECTIONS;
     connOptions.nMaxFeeler = MAX_FEELER_CONNECTIONS;
     connOptions.nBestHeight = chain_active_height;
     connOptions.uiInterface = &uiInterface;
     connOptions.m_banman = node.banman.get();
     connOptions.m_msgproc = node.peerman.get();
     connOptions.nSendBufferMaxSize =
         1000 * args.GetArg("-maxsendbuffer", DEFAULT_MAXSENDBUFFER);
     connOptions.nReceiveFloodSize =
         1000 * args.GetArg("-maxreceivebuffer", DEFAULT_MAXRECEIVEBUFFER);
     connOptions.m_added_nodes = args.GetArgs("-addnode");
 
     connOptions.nMaxOutboundTimeframe = nMaxOutboundTimeframe;
     connOptions.nMaxOutboundLimit = nMaxOutboundLimit;
     connOptions.m_peer_connect_timeout = peer_connect_timeout;
 
     for (const std::string &strBind : args.GetArgs("-bind")) {
         CService addrBind;
         if (!Lookup(strBind, addrBind, GetListenPort(), false)) {
             return InitError(ResolveErrMsg("bind", strBind));
         }
         connOptions.vBinds.push_back(addrBind);
     }
 
     for (const std::string &strBind : args.GetArgs("-whitebind")) {
         NetWhitebindPermissions whitebind;
         bilingual_str error;
         if (!NetWhitebindPermissions::TryParse(strBind, whitebind, error)) {
             return InitError(error);
         }
         connOptions.vWhiteBinds.push_back(whitebind);
     }
 
     for (const auto &net : args.GetArgs("-whitelist")) {
         NetWhitelistPermissions subnet;
         bilingual_str error;
         if (!NetWhitelistPermissions::TryParse(net, subnet, error)) {
             return InitError(error);
         }
         connOptions.vWhitelistedRange.push_back(subnet);
     }
 
     connOptions.vSeedNodes = args.GetArgs("-seednode");
 
     // Initiate outbound connections unless connect=0
     connOptions.m_use_addrman_outgoing = !args.IsArgSet("-connect");
     if (!connOptions.m_use_addrman_outgoing) {
         const auto connect = args.GetArgs("-connect");
         if (connect.size() != 1 || connect[0] != "0") {
             connOptions.m_specified_outgoing = connect;
         }
     }
     if (!node.connman->Start(*node.scheduler, connOptions)) {
         return false;
     }
 
     // Step 13: finished
 
     SetRPCWarmupFinished();
     uiInterface.InitMessage(_("Done loading").translated);
 
     for (const auto &client : node.chain_clients) {
         client->start(*node.scheduler);
     }
 
     BanMan *banman = node.banman.get();
     node.scheduler->scheduleEvery(
         [banman] {
             banman->DumpBanlist();
             return true;
         },
         DUMP_BANS_INTERVAL);
 
     // Start Avalanche's event loop.
     g_avalanche->startEventLoop(*node.scheduler);
 
     return true;
 }
diff --git a/src/init.h b/src/init.h
index 2203dea1f..a77dd0d80 100644
--- a/src/init.h
+++ b/src/init.h
@@ -1,91 +1,96 @@
 // Copyright (c) 2009-2010 Satoshi Nakamoto
 // Copyright (c) 2009-2018 The Bitcoin Core developers
 // Copyright (c) 2018-2019 The Bitcoin developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #ifndef BITCOIN_INIT_H
 #define BITCOIN_INIT_H
 
 #include <util/system.h>
 
 #include <memory>
 #include <string>
 
 class ArgsManager;
 class Config;
 class CScheduler;
 class CWallet;
 class HTTPRPCRequestProcessor;
 struct NodeContext;
 namespace interfaces {
 struct BlockAndHeaderTipInfo;
 }
 class RPCServer;
 
 namespace boost {
 class thread_group;
 } // namespace boost
 namespace util {
 class Ref;
 } // namespace util
 
 /** Interrupt threads */
 void Interrupt(NodeContext &node);
 void Shutdown(NodeContext &node);
 //! Initialize the logging infrastructure
 void InitLogging(const ArgsManager &args);
 //! Parameter interaction: change current parameters depending on various rules
 void InitParameterInteraction(ArgsManager &args);
 
 /**
  * Initialize bitcoin: Basic context setup.
  * @note This can be done before daemonization.
  * Do not call Shutdown() if this function fails.
  * @pre Parameters should be parsed and config file should be read.
  */
 bool AppInitBasicSetup(ArgsManager &args);
 /**
  * Initialization: parameter interaction.
  * @note This can be done before daemonization.
  * Do not call Shutdown() if this function fails.
  * @pre Parameters should be parsed and config file should be read,
  * AppInitBasicSetup should have been called.
  */
 bool AppInitParameterInteraction(Config &config, const ArgsManager &args);
 /**
  * Initialization sanity checks: ecc init, sanity checks, dir lock.
  * @note This can be done before daemonization.
  * Do not call Shutdown() if this function fails.
  * @pre Parameters should be parsed and config file should be read,
  * AppInitParameterInteraction should have been called.
  */
 bool AppInitSanityChecks();
 /**
  * Lock bitcoin data directory.
  * @note This should only be done after daemonization.
  * Do not call Shutdown() if this function fails.
  * @pre Parameters should be parsed and config file should be read,
  * AppInitSanityChecks should have been called.
  */
 bool AppInitLockDataDirectory();
+/**
+ * Initialize node and wallet interface pointers. Has no prerequisites or side
+ * effects besides allocating memory.
+ */
+bool AppInitInterfaces(NodeContext &node);
 /**
  * Bitcoin main initialization.
  * @note This should only be done after daemonization.
  * @pre Parameters should be parsed and config file should be read,
  * AppInitLockDataDirectory should have been called.
  */
 bool AppInitMain(Config &config, RPCServer &rpcServer,
                  HTTPRPCRequestProcessor &httpRPCRequestProcessor,
                  NodeContext &node,
                  interfaces::BlockAndHeaderTipInfo *tip_info = nullptr);
 
 /**
  * Register all arguments with the ArgsManager
  */
 void SetupServerArgs(NodeContext &node);
 
 /** Returns licensing information (for -version) */
 std::string LicenseInfo();
 
 #endif // BITCOIN_INIT_H
diff --git a/src/interfaces/node.cpp b/src/interfaces/node.cpp
index d01707ac8..7b20c519b 100644
--- a/src/interfaces/node.cpp
+++ b/src/interfaces/node.cpp
@@ -1,376 +1,376 @@
 // Copyright (c) 2018 The Bitcoin Core developers
 // Distributed under the MIT software license, see the accompanying
 // file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
 #include <interfaces/node.h>
 
 #include <addrdb.h>
 #include <banman.h>
 #include <chain.h>
 #include <chainparams.h>
 #include <config.h>
 #include <init.h>
 #include <interfaces/chain.h>
 #include <interfaces/handler.h>
 #include <interfaces/wallet.h>
 #include <net.h>
 #include <net_processing.h>
 #include <netaddress.h>
 #include <netbase.h>
 #include <node/context.h>
 #include <node/ui_interface.h>
 #include <policy/fees.h>
 #include <policy/settings.h>
 #include <primitives/block.h>
 #include <rpc/server.h>
 #include <shutdown.h>
 #include <support/allocators/secure.h>
 #include <sync.h>
 #include <txmempool.h>
 #include <util/ref.h>
 #include <util/system.h>
 #include <util/translation.h>
 #include <validation.h>
 #include <warnings.h>
 
 #if defined(HAVE_CONFIG_H)
 #include <config/bitcoin-config.h>
 #endif
 
 #include <univalue.h>
 
 #include <boost/signals2/signal.hpp>
 
 class HTTPRPCRequestProcessor;
 class CWallet;
 fs::path GetWalletDir();
 std::vector<fs::path> ListWalletDir();
 std::vector<std::shared_ptr<CWallet>> GetWallets();
 std::shared_ptr<CWallet> LoadWallet(const CChainParams &chainParams,
                                     interfaces::Chain &chain,
                                     const std::string &name,
                                     bilingual_str &error,
                                     std::vector<bilingual_str> &warnings);
 WalletCreationStatus CreateWallet(const CChainParams &params,
                                   interfaces::Chain &chain,
                                   const SecureString &passphrase,
                                   uint64_t wallet_creation_flags,
                                   const std::string &name, bilingual_str &error,
                                   std::vector<bilingual_str> &warnings,
                                   std::shared_ptr<CWallet> &result);
 std::unique_ptr<interfaces::Handler>
 HandleLoadWallet(interfaces::Node::LoadWalletFn load_wallet);
 
 namespace interfaces {
 
 namespace {
 
     class NodeImpl : public Node {
     public:
         NodeImpl(NodeContext *context) { setContext(context); }
         void initLogging() override { InitLogging(*Assert(m_context->args)); }
         void initParameterInteraction() override {
             InitParameterInteraction(*Assert(m_context->args));
         }
         bilingual_str getWarnings() override { return GetWarnings(true); }
         bool baseInitialize(Config &config) override {
             return AppInitBasicSetup(gArgs) &&
                    AppInitParameterInteraction(config, gArgs) &&
-                   AppInitSanityChecks() && AppInitLockDataDirectory();
+                   AppInitSanityChecks() && AppInitLockDataDirectory() &&
+                   AppInitInterfaces(*m_context);
         }
         bool appInitMain(Config &config, RPCServer &rpcServer,
                          HTTPRPCRequestProcessor &httpRPCRequestProcessor,
                          interfaces::BlockAndHeaderTipInfo *tip_info) override {
-            m_context->chain = MakeChain(*m_context, config.GetChainParams());
             return AppInitMain(config, rpcServer, httpRPCRequestProcessor,
                                *m_context, tip_info);
         }
         void appShutdown() override {
             Interrupt(*m_context);
             Shutdown(*m_context);
         }
         void startShutdown() override {
             StartShutdown();
             // Stop RPC for clean shutdown if any of waitfor* commands is
             // executed.
             if (gArgs.GetBoolArg("-server", false)) {
                 InterruptRPC();
                 StopRPC();
             }
         }
         bool shutdownRequested() override { return ShutdownRequested(); }
         void mapPort(bool use_upnp) override {
             if (use_upnp) {
                 StartMapPort();
             } else {
                 InterruptMapPort();
                 StopMapPort();
             }
         }
         bool getProxy(Network net, proxyType &proxy_info) override {
             return GetProxy(net, proxy_info);
         }
         size_t getNodeCount(CConnman::NumConnections flags) override {
             return m_context->connman ? m_context->connman->GetNodeCount(flags)
                                       : 0;
         }
         bool getNodesStats(NodesStats &stats) override {
             stats.clear();
 
             if (m_context->connman) {
                 std::vector<CNodeStats> stats_temp;
                 m_context->connman->GetNodeStats(stats_temp);
 
                 stats.reserve(stats_temp.size());
                 for (auto &node_stats_temp : stats_temp) {
                     stats.emplace_back(std::move(node_stats_temp), false,
                                        CNodeStateStats());
                 }
 
                 // Try to retrieve the CNodeStateStats for each node.
                 TRY_LOCK(::cs_main, lockMain);
                 if (lockMain) {
                     for (auto &node_stats : stats) {
                         std::get<1>(node_stats) =
                             GetNodeStateStats(std::get<0>(node_stats).nodeid,
                                               std::get<2>(node_stats));
                     }
                 }
                 return true;
             }
             return false;
         }
         bool getBanned(banmap_t &banmap) override {
             if (m_context->banman) {
                 m_context->banman->GetBanned(banmap);
                 return true;
             }
             return false;
         }
         bool ban(const CNetAddr &net_addr, int64_t ban_time_offset) override {
             if (m_context->banman) {
                 m_context->banman->Ban(net_addr, ban_time_offset);
                 return true;
             }
             return false;
         }
         bool unban(const CSubNet &ip) override {
             if (m_context->banman) {
                 m_context->banman->Unban(ip);
                 return true;
             }
             return false;
         }
         bool disconnectByAddress(const CNetAddr &net_addr) override {
             if (m_context->connman) {
                 return m_context->connman->DisconnectNode(net_addr);
             }
             return false;
         }
         bool disconnectById(NodeId id) override {
             if (m_context->connman) {
                 return m_context->connman->DisconnectNode(id);
             }
             return false;
         }
         int64_t getTotalBytesRecv() override {
             return m_context->connman ? m_context->connman->GetTotalBytesRecv()
                                       : 0;
         }
         int64_t getTotalBytesSent() override {
             return m_context->connman ? m_context->connman->GetTotalBytesSent()
                                       : 0;
         }
         size_t getMempoolSize() override {
             return m_context->mempool ? m_context->mempool->size() : 0;
         }
         size_t getMempoolDynamicUsage() override {
             return m_context->mempool ? m_context->mempool->DynamicMemoryUsage()
                                       : 0;
         }
         bool getHeaderTip(int &height, int64_t &block_time) override {
             LOCK(::cs_main);
             if (::pindexBestHeader) {
                 height = ::pindexBestHeader->nHeight;
                 block_time = ::pindexBestHeader->GetBlockTime();
                 return true;
             }
             return false;
         }
         int getNumBlocks() override {
             LOCK(::cs_main);
             return ::ChainActive().Height();
         }
         BlockHash getBestBlockHash() override {
             const CBlockIndex *tip =
                 WITH_LOCK(::cs_main, return ::ChainActive().Tip());
             return tip ? tip->GetBlockHash()
                        : Params().GenesisBlock().GetHash();
         }
         int64_t getLastBlockTime() override {
             LOCK(::cs_main);
             if (::ChainActive().Tip()) {
                 return ::ChainActive().Tip()->GetBlockTime();
             }
             // Genesis block's time of current network
             return Params().GenesisBlock().GetBlockTime();
         }
         double getVerificationProgress() override {
             const CBlockIndex *tip;
             {
                 LOCK(::cs_main);
                 tip = ::ChainActive().Tip();
             }
             return GuessVerificationProgress(Params().TxData(), tip);
         }
         bool isInitialBlockDownload() override {
             return ::ChainstateActive().IsInitialBlockDownload();
         }
         bool getReindex() override { return ::fReindex; }
         bool getImporting() override { return ::fImporting; }
         void setNetworkActive(bool active) override {
             if (m_context->connman) {
                 m_context->connman->SetNetworkActive(active);
             }
         }
         bool getNetworkActive() override {
             return m_context->connman && m_context->connman->GetNetworkActive();
         }
         CFeeRate estimateSmartFee() override {
             return m_context->mempool ? m_context->mempool->estimateFee()
                                       : CFeeRate();
         }
         CFeeRate getDustRelayFee() override { return ::dustRelayFee; }
         UniValue executeRpc(Config &config, const std::string &command,
                             const UniValue &params,
                             const std::string &uri) override {
             JSONRPCRequest req(m_context_ref);
             req.params = params;
             req.strMethod = command;
             req.URI = uri;
             return ::tableRPC.execute(config, req);
         }
         std::vector<std::string> listRpcCommands() override {
             return ::tableRPC.listCommands();
         }
         void rpcSetTimerInterfaceIfUnset(RPCTimerInterface *iface) override {
             RPCSetTimerInterfaceIfUnset(iface);
         }
         void rpcUnsetTimerInterface(RPCTimerInterface *iface) override {
             RPCUnsetTimerInterface(iface);
         }
         bool getUnspentOutput(const COutPoint &output, Coin &coin) override {
             LOCK(::cs_main);
             return ::ChainstateActive().CoinsTip().GetCoin(output, coin);
         }
         std::string getWalletDir() override { return GetWalletDir().string(); }
         std::vector<std::string> listWalletDir() override {
             std::vector<std::string> paths;
             for (auto &path : ListWalletDir()) {
                 paths.push_back(path.string());
             }
             return paths;
         }
         std::vector<std::unique_ptr<Wallet>> getWallets() override {
             std::vector<std::unique_ptr<Wallet>> wallets;
             for (auto &client : m_context->chain_clients) {
                 auto client_wallets = client->getWallets();
                 std::move(client_wallets.begin(), client_wallets.end(),
                           std::back_inserter(wallets));
             }
             return wallets;
         }
         std::unique_ptr<Wallet>
         loadWallet(const CChainParams &params, const std::string &name,
                    bilingual_str &error,
                    std::vector<bilingual_str> &warnings) const override {
             return MakeWallet(
                 LoadWallet(params, *m_context->chain, name, error, warnings));
         }
         std::unique_ptr<Wallet>
         createWallet(const CChainParams &params, const SecureString &passphrase,
                      uint64_t wallet_creation_flags, const std::string &name,
                      bilingual_str &error, std::vector<bilingual_str> &warnings,
                      WalletCreationStatus &status) override {
             std::shared_ptr<CWallet> wallet;
             status = CreateWallet(params, *m_context->chain, passphrase,
                                   wallet_creation_flags, name, error, warnings,
                                   wallet);
             return MakeWallet(wallet);
         }
         std::unique_ptr<Handler> handleInitMessage(InitMessageFn fn) override {
             return MakeHandler(::uiInterface.InitMessage_connect(fn));
         }
         std::unique_ptr<Handler> handleMessageBox(MessageBoxFn fn) override {
             return MakeHandler(::uiInterface.ThreadSafeMessageBox_connect(fn));
         }
         std::unique_ptr<Handler> handleQuestion(QuestionFn fn) override {
             return MakeHandler(::uiInterface.ThreadSafeQuestion_connect(fn));
         }
         std::unique_ptr<Handler>
         handleShowProgress(ShowProgressFn fn) override {
             return MakeHandler(::uiInterface.ShowProgress_connect(fn));
         }
         std::unique_ptr<Handler> handleLoadWallet(LoadWalletFn fn) override {
             return HandleLoadWallet(std::move(fn));
         }
         std::unique_ptr<Handler> handleNotifyNumConnectionsChanged(
             NotifyNumConnectionsChangedFn fn) override {
             return MakeHandler(
                 ::uiInterface.NotifyNumConnectionsChanged_connect(fn));
         }
         std::unique_ptr<Handler> handleNotifyNetworkActiveChanged(
             NotifyNetworkActiveChangedFn fn) override {
             return MakeHandler(
                 ::uiInterface.NotifyNetworkActiveChanged_connect(fn));
         }
         std::unique_ptr<Handler>
         handleNotifyAlertChanged(NotifyAlertChangedFn fn) override {
             return MakeHandler(::uiInterface.NotifyAlertChanged_connect(fn));
         }
         std::unique_ptr<Handler>
         handleBannedListChanged(BannedListChangedFn fn) override {
             return MakeHandler(::uiInterface.BannedListChanged_connect(fn));
         }
         std::unique_ptr<Handler>
         handleNotifyBlockTip(NotifyBlockTipFn fn) override {
             return MakeHandler(::uiInterface.NotifyBlockTip_connect(
                 [fn](SynchronizationState sync_state,
                      const CBlockIndex *block) {
                     fn(sync_state,
                        BlockTip{block->nHeight, block->GetBlockTime(),
                                 block->GetBlockHash()},
                        GuessVerificationProgress(Params().TxData(), block));
                 }));
         }
         std::unique_ptr<Handler>
         handleNotifyHeaderTip(NotifyHeaderTipFn fn) override {
             /* verification progress is unused when a header was received */
             return MakeHandler(::uiInterface.NotifyHeaderTip_connect(
                 [fn](SynchronizationState sync_state,
                      const CBlockIndex *block) {
                     fn(sync_state,
                        BlockTip{block->nHeight, block->GetBlockTime(),
                                 block->GetBlockHash()},
                        0);
                 }));
         }
         NodeContext *context() override { return m_context; }
         void setContext(NodeContext *context) override {
             m_context = context;
             if (context) {
                 m_context_ref.Set(*context);
             } else {
                 m_context_ref.Clear();
             }
         }
         NodeContext *m_context{nullptr};
         util::Ref m_context_ref{m_context};
     };
 } // namespace
 
 std::unique_ptr<Node> MakeNode(NodeContext *context) {
     return std::make_unique<NodeImpl>(context);
 }
 
 } // namespace interfaces