🧹 restructure layout

modules/services/redshift.nix

@@ -0,0 +1,23 @@
+{ config, lib, pkgs, ... }:
+
+with lib;
+let
+  cfg = config.my.services.redshift;
+in
+{
+  options.my.services.redshift = {
+    enable = mkOption {
+      default = false;
+      type = types.bool;
+      example = true;
+    };
+  };
+
+  config = lib.mkIf cfg.enable {
+    services.redshift.enable = true;
+    location = {
+      latitude = 52.3;
+      longitude = 12.4;
+    };
+  };
+}