Any good ways on how to get into kernel dev?

i know... i know... this isn't what someone should ask, but i would really appreciate some tips or any resources outside official docs and source code? Or those are enough?

Why should this not be asked?

Start here: https://www.kernel.org/doc/html/v4.16/process/howto.html

Thanks! When the question formed in my head I kinda remembered a video I watched a few days ago: https://www.youtube.com/watch?v=krWLtVW4P_Y and the first ~20 seconds of it. But of course I don't actually mean it that seriously.