feat: add git-trim

home/base/server/git.nix

@@ -15,6 +15,12 @@
     rm -f ~/.gitconfig
   '';
 
+  home.packages = with pkgs; [
+    # Automatically trims your branches whose tracking remote refs are merged or gone
+    # It's really useful when you work on a project for a long time.
+    git-trim
+  ];
+
   programs.git = {
     enable = true;
     lfs.enable = true;