direnv should have been part of unix/linux/posix environments from the start. Whenever something's install steps tell you "go add this export statement to your .bashrc" or similar, it never sat well. That sort of thing should be scoped by path, and shell independent -- exactly the thing direnv enables.
I never understood why people were so enamored with direnv, but this makes me understand it a bit. I don't think I need it right now, but I'll keep it in mind for this use case.
