feat(shell): show git 'ahead' commit count

home/modules/shell/prompt.nix

@@ -6,6 +6,13 @@
 
 {
   config = lib.mkIf config.shell.enable {
-    programs.starship.enable = true;
+    programs.starship = {
+      enable = true;
+      settings = {
+        git_status = {
+          ahead = "⇡$\{count\}";
+        };
+      };
+    };
   };
 }