Digging into random open source projects is a good way to become a better developer in general, although I'm not sure I'd want to make a career somewhere random

Digging into random open source projects is a good way to become a better developer in general, although I'm not sure I'd want to make a career somewhere random. I'm a lot better with git, with various testing libraries, benchmarking, CI, etc - because I've dug into a lot of random projects. About a year ago, I started just digging in when I ran into something weird, rather than moving on or working around it. Sometimes it's more work than I want to devote, but when it isn't, I often learn an awful lot.