fix some regressions

flake.nix

@@ -33,7 +33,7 @@
       url = "git+https://git.outfoxxed.me/outfoxxed/quickshell";
       inputs.nixpkgs.follows = "nixpkgs";
     };
-
+    nix-vscode-extensions.url = "github:nix-community/nix-vscode-extensions/fd5c5549692ff4d2dbee1ab7eea19adc2f97baeb";
   };
 
   outputs = {
@@ -44,6 +44,7 @@
     stylix,
     sops-nix,
     quickshell,
+    nix-vscode-extensions,
     ...
   } @ inputs:
     let
@@ -101,11 +102,17 @@
       specialArgs = { inherit inputs; };
 
       modules = [
+        {
+          nixpkgs.overlays = [
+            inputs.nix-vscode-extensions.overlays.default
+          ];
+        }
         ./hosts/yoga-7-pro
         sops-nix.nixosModules.sops
         stylix.nixosModules.stylix
         home-manager.nixosModules.home-manager
           {
+            home-manager.backupFileExtension = ".backup";
             home-manager.useGlobalPkgs = true;
             home-manager.useUserPackages = true;
             home-manager.extraSpecialArgs = { inherit inputs; };