I worked on an oss library with an MIT license and my colleagues told me they with that instead of GPL was with GPL it basically forces anyone who uses the library to make everything in their project available.

You could look at http://warrior.archiveteam.org/ and https://github.com/ArchiveBox/good-karma-kit

I think the-eye.eu had a copy of it

There was a hacker news post at some point of someone achieving the same result with Ventoy.

The tldr cli (tldr.sh) is a great way to get familiar with options of differ programs.

Not open-source but I’ve used chatgpt to write tailored cover letters based on my cv and the job description, and afterwards I’d tweak it to fix the things it got wrong.