Move config to gitconfig?

[keith]

Right now the few configuration variables are all env vars, it might make sense to move this configuration to the gitconfig instead so it's in a standard place users likely already understand, and so they could potentially vary per project if users wanted. One great use case for varying per project would be if we allowed default configuration for arguments passed to gh pr create, where you might want to add the same reviewers always on some projects but not others

[IanEdington]

Although git configuration variables would be more ideal I'm currently using https://github.com/direnv/direnv to have different prefixes per repo.

[hauleth]

Why not both? Also you can have git configuration per repo.