Well if you are using emacs, like I do, what else do you need? Ok maybe a browser outside of emacs and a pdf viewer:-) And a tmux session somewhere.

Someone once said:

I just need a bootloader for emacs :-)

So, you also have a functioning OpenJDK 8 or so to run NetBeans?

I assume this means an x86 machine, correct?

Yes this is on NetBSD/amd64, with a native OpenJDK 8.

OpenJDK 8 will build for arm as well but it doesn't have a JIT.