Everyone else. Their work, their projects, their hobbies. Games developers are a fascinating lot, especially at the indie level. Positive encouragement is a must and I'm glad to have (virtually) met so many folks who give so much of their time to positive feedback (heck, look at itch.io!).
Well, that and a bunch of stubbornness and curiousity. I program in Java (and web stuff) for a living (awkward mix of backend service developer and front UI / UX developer) so sticking with Java is at this point more of a conscious stubborn reliance on something I know more than anything else :)
I have a basic understanding of C# and even though C++ moderately terrifies me, I could learn it (time permitting). That said, I've sank so many hours into understanding Java it seems a shame to throw it away now (especially since I don't have the luxury of going full-times with games stuff at the moment). I kinda actually like working in it at this point.