I think... I want to learn to use LaTeX, specifically so that I can use Lilypond.
Current PLN: get a used laptop, put Linux on it.
Eventually, using Rosegarden or similar might also be good.
I haven't used anything other than MacOS or sometimes Windows for a good ten years and I do not have a lot of time to mess with stuff. Needing to install extra stuff or special libraries or whatever is a huge speedbump for me, not a fun puzzle.
Hardware/software recommendations, and boosts, welcome.