Tell me about it. Instructions working on the first attempt on a standard Debian system is quite rare. Bigger projects with more contributors put more work into making it work, but also have more complex processes, so the result is that it's almost always trouble. Or they're simply more complex than necessary: no I don't want to download 12GB of IDE, SDK/compiler, emulated operating systems, and custom versions of dependencies installed system-wide in order to compile and run this project, I just want the code and dependencies in the local folder and apt install a compiler so I can simply build the apk and adb install it on my phone without screwing up my system or having to setup a new container/VM for the purpose.