refactor: moved modules to legacy-modules

legacy-modules/home-manager-modules/programs/steam.nix

@@ -0,0 +1,35 @@
+{
+  lib,
+  pkgs,
+  config,
+  ...
+}: {
+  options.programs.steam = {
+    enable = lib.mkEnableOption "enable steam";
+  };
+
+  config = lib.mkIf config.programs.steam.enable (
+    lib.mkMerge [
+      {
+        home.packages = with pkgs; [
+          steam
+          steam.run
+        ];
+      }
+      (
+        lib.mkIf config.impermanence.enable {
+          home.persistence."${config.impermanence.persistencePath}" = {
+            directories = [
+              {
+                directory = "${config.xdg.dataHome}/Steam";
+                method = "symlink";
+              }
+            ];
+          };
+        }
+      )
+    ]
+  );
+
+  # TODO: bind impermanence config
+}