feat: git changes

Like usual, this never works out first try. It might not be obvious, but
I'm also trying to set up signing at the same time as this commit is
pushed. Expect dummy commits if I mess it up.

home.nix

@@ -100,6 +100,7 @@ in
 
         extraConfig = {
             init.defaultBranch = "main";
+			push.autoSetupRemote = true;
 
             "url \"https://github.com/\"".insteadOf = "gh:";
         };