move foot to module, and disable it.

home/modules/foot/default.nix

@@ -0,0 +1,25 @@
+{ config, lib, ... }:
+let
+  cfg = config.youthlic.programs.foot;
+in
+{
+  options = {
+    youthlic.programs.foot = {
+      enable = lib.mkOption {
+        type = lib.types.bool;
+        default = true;
+        example = false;
+        description = ''
+          whether use foot terminal
+        '';
+      };
+    };
+  };
+  config = lib.mkIf cfg.enable {
+    programs.foot = {
+      enable = true;
+      server.enable = true;
+      settings = builtins.fromINI (builtins.readFile ./foot.ini);
+    };
+  };
+}