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.