One git identity per directory, declared as a table

Sun, 11 Oct 2026 10:00:00 -0400

My main development machine is a Mac driven by a single nix-darwin flake, and git’s global config is generated by Home Manager¹, which writes it to ~/.config/git/config. What I wanted from it was simple to state. Repositories for an employer or client should commit with that organisation’s email and everything else with my default, with the choice made by where the repository lives on disk and nothing asked of me at clone time, which rules out any step I’d have to remember.

Nix on Thoughts and code

One git identity per directory, declared as a table