refactor(git): update configuration to use centralized email setting

refactor(starship): enhance config with palette and external TOML file

home/programs/starship.nix

@@ -4,21 +4,29 @@
   device,
   ...
 }: {
+  stylix.targets.starship.enable = false;
   programs.starship = {
     enable = true;
     enableFishIntegration = true;
     enableNushellIntegration = true;
-    settings = {
-      format = "$all$character";
-      character = {
-        success_symbol = "[[OK](bold green) ❯](maroon)";
-        error_symbol = "[❯](red)";
-        vimcmd_symbol = "[❮](green)";
-      };
-      directory = {
-        truncation_length = 4;
-        style = "bold lavender";
-      };
-    };
+    settings = let
+      flavour = "mocha"; # Replace with your preferred palette
+    in
+      {
+        # Check https://starship.rs/config/#prompt
+        format = "$all$character";
+        palette = "catppuccin_${flavour}";
+        character = {
+          success_symbol = "[[OK](bold green) ❯](maroon)";
+          error_symbol = "[❯](red)";
+          vimcmd_symbol = "[❮](green)";
+        };
+        directory = {
+          truncation_length = 4;
+          style = "bold lavender";
+        };
+      }
+      // builtins.fromTOML (builtins.readFile
+        (pkgs.catppuccinThemes.starship + /palettes/${flavour}.toml));
   };
 }