rework home manager layout

home-manager/code.nix

@@ -0,0 +1,14 @@
+
+{ user, pkgs, ... }:
+{
+  home-manager.users.${user} = {
+    programs.vscode = {
+      enable = true;
+      package = pkgs.vscodium;
+      extensions = with pkgs.vscode-extensions; [
+        jnoortheen.nix-ide
+        rust-lang.rust-analyzer
+     ];
+    };
+  };
+}