Hi @kwaspek104
Feel free to head over to https://github.com/triplea-game/triplea to have a look at the code. This is a rather old codebase, so there are a lot of things that can be done to improve it. I want to emphasise that we're a volunteer driven project, and we're doing this mostly for fun.
At least for me the reason I'm not as active currently basically boils down to the fact that I haven't got as much free time as I used to have. Life comes at you fast.
Of course I can't speak for everyone at the dev team but usually we're happy to help if you need some pointers in the right direction or some help to understand a certain part of the code. Just ping me (@RoiEXLab), @asvitkine and maybe also @DanVanAtta on GitHub and we'll come back to you.
So feel free to ask any questions you might still have.