what's the point of this post? what a neghead.

I am a big fan of cheat.sh for which only curl is needed

Type in your terminal ..

curl cheat.sh/ls

Yeah, I have this it's excellent, tho sometimes turns my terminal a funny colour...

Offer to solve a local business' solution pro-bono and commit to self-imposed deadlines

Preferably a local business that's been hit by covid pain

For groking relational databases and schemas, I find Dbeaver is good for producing an entity relation diagram in relation to a specific table (as well as an overall ERD)

I haven't yet - but I'm planning to ban the smart phone and tablet computer from the bedroom.

a very good idea