diff --git a/nix/home-manager/programs/vscode/default.nix b/nix/home-manager/programs/vscode/default.nix
index 2746fcb..1318aaf 100644
--- a/nix/home-manager/programs/vscode/default.nix
+++ b/nix/home-manager/programs/vscode/default.nix
@@ -25,9 +25,8 @@ in {
           tomoki1207.pdf
           vscodevim.vim
 
-          bbenoist.nix
+          # bbenoist.nix
           jnoortheen.nix-ide
-          # kamadorueda.alejandra
 
           ms-vscode.theme-tomorrowkit
           nonylene.dark-molokai-theme
@@ -75,7 +74,6 @@ in {
 
   home.packages = [
     pkgs.nixpkgs-fmt
-    pkgs.alejandra
     pkgs.nil
   ];
 }
diff --git a/nix/scripts/nix4vscode/config.toml b/nix/home-manager/programs/vscode/nix4vscode/config.toml
similarity index 58%
rename from nix/scripts/nix4vscode/config.toml
rename to nix/home-manager/programs/vscode/nix4vscode/config.toml
index 55c54da..38f9978 100644
--- a/nix/scripts/nix4vscode/config.toml
+++ b/nix/home-manager/programs/vscode/nix4vscode/config.toml
@@ -3,3 +3,7 @@ vscode_version = "1.94.2"
 [[extensions]]
 publisher_name = "FelixZeller"
 extension_name = "markdown-oxide"
+
+[[extensions]]
+publisher_name = "ibecker"
+extension_name = "treefmt-vscode"
diff --git a/nix/home-manager/programs/vscode/nix4vscode/default.nix b/nix/home-manager/programs/vscode/nix4vscode/default.nix
new file mode 100644
index 0000000..5cc0669
--- /dev/null
+++ b/nix/home-manager/programs/vscode/nix4vscode/default.nix
@@ -0,0 +1,56 @@
+{
+  pkgs,
+  lib,
+}: let
+  inherit (pkgs.stdenv) isDarwin isLinux isi686 isx86_64 isAarch32 isAarch64;
+  vscode-utils = pkgs.vscode-utils;
+  merge = lib.attrsets.recursiveUpdate;
+in
+  merge
+  (merge
+    (merge
+      (merge
+        {
+          "felixzeller"."markdown-oxide" = vscode-utils.extensionFromVscodeMarketplace {
+            name = "markdown-oxide";
+            publisher = "felixzeller";
+            version = "1.1.0";
+            sha256 = "07l37hkg106m3nl9530l7i39iw1kibckv1zi4n23gbp7srdrwbs3";
+          };
+        }
+        (lib.attrsets.optionalAttrs (isLinux && (isi686 || isx86_64)) {
+          "ibecker"."treefmt-vscode" = vscode-utils.extensionFromVscodeMarketplace {
+            name = "treefmt-vscode";
+            publisher = "ibecker";
+            version = "2.1.0";
+            sha256 = "1r17wjpw8xiha5r9h3146facxghpcp416zf8551sw93cmam9ky6j";
+            arch = "linux-x64";
+          };
+        }))
+      (lib.attrsets.optionalAttrs (isLinux && (isAarch32 || isAarch64)) {
+        "ibecker"."treefmt-vscode" = vscode-utils.extensionFromVscodeMarketplace {
+          name = "treefmt-vscode";
+          publisher = "ibecker";
+          version = "2.1.0";
+          sha256 = "0swvl7fkjcwp43grnrhnmy60a5m3hfwawk204byi8hhbczy131li";
+          arch = "linux-arm64";
+        };
+      }))
+    (lib.attrsets.optionalAttrs (isDarwin && (isi686 || isx86_64)) {
+      "ibecker"."treefmt-vscode" = vscode-utils.extensionFromVscodeMarketplace {
+        name = "treefmt-vscode";
+        publisher = "ibecker";
+        version = "2.1.0";
+        sha256 = "1swq9hy6a9nzkrn07j21g59pyk2m7aqsfi1pphl9l9y8p4zwiaqm";
+        arch = "darwin-x64";
+      };
+    }))
+  (lib.attrsets.optionalAttrs (isDarwin && (isAarch32 || isAarch64)) {
+    "ibecker"."treefmt-vscode" = vscode-utils.extensionFromVscodeMarketplace {
+      name = "treefmt-vscode";
+      publisher = "ibecker";
+      version = "2.1.0";
+      sha256 = "1xg3wnn3f1kvsz5a09l0cjpzfm3l9va73cahbvl14mx3n6734r2m";
+      arch = "darwin-arm64";
+    };
+  })