This is a thread to connect rationalists who are learning the same thing, so they can cooperate.
The "learning" doesn't necessarily mean "I am reading a textbook / learning an online course right now". It can be something you are interested in long-term, and still want to learn more.
Rules:
Top-level comments contain only the topic to learn. (Plus one comment for "meta" debate.) Only one topic per comment, for easier search. Try to find a reasonable level of specificity: too narrow topic means less people; too wide topic means more people who actually are interested in something different than you are.
Use the second-level comments if you are learning that topic. (Or if you are going to learn it now, not merely in the far future.) Technically, "me too" is okay in this thread, but providing more info is probably more useful. For example: What are you focusing on? What learning materials you use? What is your goal?
Third- and deeper-level comments, that's debate as usual.
I'm not sure I understand what you mean. Implement what functionality where? I don't think I'm going to start working for that company just because this feature is interesting :-) As for my own program, I changed it to use a health bar today, but that is of no use to anyone else, since the program is not designed to be easily usable by other people. I always find it terrible to consider that large companies have so many interdependencies that they take months to implement (and verify and test) what took an hour for my primitive program.
HabitRPG is completely open-source, and has very little actual staff (I think about 3 currently). Contributing to HabitRPG has more info (scroll down to 'Coders: Web and Mobile') - basically the philosophy is 'if you want something changed, go in and change it'. I thought you might like the app in general, and by adding that feature be able to get everything out of it you do with your own app, while helping lots of other people at the same time.
Fair enough - it does require more testing, and if you've got one going that works for you that's great :-)