{ pkgs, ... }:

{
  programs.git = {
    enable = true;
    lfs.enable = true;
    signing = {
      signByDefault = true;
      key = null;
    };
    extraConfig.credential.helper = "store";
    hooks = {
      commit-msg = pkgs.writeScript "git-commit-msg" ''
        #!${pkgs.runtimeShell}

        git interpret-trailers --if-exists doNothing --trailer \
          "Signed-off-by: $(git config user.name) <$(git config user.email)>" \
          --in-place "$1"
      '';
    };
  };
}