I am specifically asking about software and needed libraries, not stuff like Wikipedia or the writings of Ernest Hemmingway.
To keep people from archiving all of github on thousands of shucked external hard drives cobbled together all Frankenstein-y to create a postapocalyptic data center assume a ~1TB storage limitation. Though I’m sure that person exists here on Lemmy somewhere :D
To start, I’d download nixpkgs. That would cover pretty much anything I could want.