As someone looking to contribute, I'm really glad I stumbled on this PR! I will go through the "Getting set up" steps later today and report back if I run into any issues or see ways in which the documentation would be clearer (of course please don't wait for me to go ahead and merge, I can always make my own diff later if necessary). One thing that seems to be missing, from my perspective as a potential contributor is, what do I work on? I could go and look through the list of tasks on Phabricator, but I'd rather get an idea of what other devs are working on and what they feel is important to be done (and of course other devs can get a feel for my skillset and help point me in a more effective direction). What would be a good way to ask what to work on, is there a chat room or a mailing list or something? And if there is, could we add it to this guide?