Regarding your last point, do have a look at utilities like these [1][2][3] if you haven't seen them before - I have just been using cheat.sh as no install is needed, and I think it pulls from the other 2 services.

Just set up a bash alias to simplify querying it.

[1] https://github.com/cheat/cheat

[2] https://tldr.sh/

[3] https://cheat.sh/