home: add bat config

home/bat.nix

@@ -0,0 +1,20 @@
+{ config, lib, ... }:
+let
+  cfg = config.my.home.bat;
+  batTheme = config.my.theme.batTheme;
+in
+{
+  options.my.home.bat = with lib; {
+    enable = (mkEnableOption "bat code display tool") // { default = true; };
+  };
+
+  config = lib.mkIf cfg.enable {
+    programs.bat = {
+      enable = true;
+
+      config = {
+        theme = batTheme.name;
+      };
+    };
+  };
+}