diff --git a/home/applications/vscode/default.nix b/home/applications/vscode/default.nix
index 9e2fb7b..2d9ddc0 100644
--- a/home/applications/vscode/default.nix
+++ b/home/applications/vscode/default.nix
@@ -43,6 +43,7 @@ in {
 
       ## Code Completion
       continue.continue
+      saoudrizwan.claude-dev
 
       ## Development Environment
       ms-toolsai.jupyter
diff --git a/home/applications/vscode/extensions.lock b/home/applications/vscode/extensions.lock
index 047bf19..ec714a7 100644
--- a/home/applications/vscode/extensions.lock
+++ b/home/applications/vscode/extensions.lock
@@ -178,6 +178,12 @@ merge
           version = "0.2.9";
           sha256 = "0l3si78il7ja6621991nljjvvywwkwfnnix9jz5s8y0il2cfq9y9";
         };
+        "saoudrizwan"."claude-dev" = vscode-utils.extensionFromVscodeMarketplace {
+          name = "claude-dev";
+          publisher = "saoudrizwan";
+          version = "2.1.6";
+          sha256 = "107fygmfxfj8gl4khmw94h9230yhzh9pxfxv77ah2hi0xadcs0az";
+        };
         "liamhammett"."inline-parameters" = vscode-utils.extensionFromVscodeMarketplace {
           name = "inline-parameters";
           publisher = "liamhammett";
@@ -250,6 +256,13 @@ merge
             sha256 = "1bvy5xaxb5jqrv0fchx8vhk7mvk4vfx4if08513cbq2idaplvsqb";
             arch = "linux-x64";
           };
+          "biomejs"."biome" = vscode-utils.extensionFromVscodeMarketplace {
+            name = "biome";
+            publisher = "biomejs";
+            version = "2024.10.131712";
+            sha256 = "00n39bx3jg921h90j5k6ymv3dj9ar1q2vq7zh35sph8q7lzmmjf2";
+            arch = "linux-x64";
+          };
         }))
       (lib.attrsets.optionalAttrs (isLinux && (isAarch32 || isAarch64)) {
         "ms-python"."python" = vscode-utils.extensionFromVscodeMarketplace {
@@ -280,6 +293,13 @@ merge
           sha256 = "0fbrfdgdxqx74ppn5khh6ypp615bqnj7b6jqxz8cbl4js9qrvjr6";
           arch = "linux-arm64";
         };
+        "biomejs"."biome" = vscode-utils.extensionFromVscodeMarketplace {
+          name = "biome";
+          publisher = "biomejs";
+          version = "2024.10.131712";
+          sha256 = "00n39bx3jg921h90j5k6ymv3dj9ar1q2vq7zh35sph8q7lzmmjf2";
+          arch = "linux-arm64";
+        };
       }))
     (lib.attrsets.optionalAttrs (isDarwin && (isi686 || isx86_64)) {
       "ms-python"."python" = vscode-utils.extensionFromVscodeMarketplace {
@@ -310,6 +330,13 @@ merge
         sha256 = "1dibbfnmhj33na1yblbfblvazq5q0w7m75nixp8gl3fl4q1g7631";
         arch = "darwin-x64";
       };
+      "biomejs"."biome" = vscode-utils.extensionFromVscodeMarketplace {
+        name = "biome";
+        publisher = "biomejs";
+        version = "2024.10.131712";
+        sha256 = "00n39bx3jg921h90j5k6ymv3dj9ar1q2vq7zh35sph8q7lzmmjf2";
+        arch = "darwin-x64";
+      };
     }))
   (lib.attrsets.optionalAttrs (isDarwin && (isAarch32 || isAarch64)) {
     "ms-python"."python" = vscode-utils.extensionFromVscodeMarketplace {
@@ -340,5 +367,12 @@ merge
       sha256 = "0msn1n04hb5r0aqzms44f65ar4gkyvxa36y31blsb5vdlrmrj9h0";
       arch = "darwin-arm64";
     };
+    "biomejs"."biome" = vscode-utils.extensionFromVscodeMarketplace {
+      name = "biome";
+      publisher = "biomejs";
+      version = "2024.10.131712";
+      sha256 = "00n39bx3jg921h90j5k6ymv3dj9ar1q2vq7zh35sph8q7lzmmjf2";
+      arch = "darwin-arm64";
+    };
   })
 
diff --git a/home/applications/vscode/extensions.toml b/home/applications/vscode/extensions.toml
index 276a0d9..5ac6a3d 100644
--- a/home/applications/vscode/extensions.toml
+++ b/home/applications/vscode/extensions.toml
@@ -154,4 +154,12 @@ extension_name = "playwright"
 
 [[extensions]]
 publisher_name = "denoland"
-extension_name = "vscode-deno"
\ No newline at end of file
+extension_name = "vscode-deno"
+
+[[extensions]]
+publisher_name = "biomejs"
+extension_name = "biome"
+
+[[extensions]]
+publisher_name = "saoudrizwan"
+extension_name = "claude-dev"
\ No newline at end of file
diff --git a/home/applications/vscode/javascript.nix b/home/applications/vscode/javascript.nix
index 4a39890..8008fe2 100644
--- a/home/applications/vscode/javascript.nix
+++ b/home/applications/vscode/javascript.nix
@@ -13,7 +13,7 @@ in {
       # General
       christian-kohler.npm-intellisense
       denoland.vscode-deno
-      esbenp.prettier-vscode
+      biomejs.biome
       liamhammett.inline-parameters
       yatki.vscode-surround
 
@@ -37,14 +37,14 @@ in {
       ms-playwright.playwright
     ];
     userSettings = {
-      "[javascript]"."editor.defaultFormatter" = "esbenp.prettier-vscode";
-      "[typescript]"."editor.defaultFormatter" = "esbenp.prettier-vscode";
-      "[typescriptreact]"."editor.defaultFormatter" = "esbenp.prettier-vscode";
-      "[json]"."editor.defaultFormatter" = "esbenp.prettier-vscode";
-      "[jsonc]"."editor.defaultFormatter" = "esbenp.prettier-vscode";
-      "[html]"."editor.defaultFormatter" = "esbenp.prettier-vscode";
-      "[scss]"."editor.defaultFormatter" = "esbenp.prettier-vscode";
-      "[css]"."editor.defaultFormatter" = "esbenp.prettier-vscode";
+      "[javascript]"."editor.defaultFormatter" = "biomejs.biome";
+      "[typescript]"."editor.defaultFormatter" = "biomejs.biome";
+      "[typescriptreact]"."editor.defaultFormatter" = "biomejs.biome";
+      "[json]"."editor.defaultFormatter" = "biomejs.biome";
+      "[jsonc]"."editor.defaultFormatter" = "biomejs.biome";
+      "[html]"."editor.defaultFormatter" = "biomejs.biome";
+      "[scss]"."editor.defaultFormatter" = "biomejs.biome";
+      "[css]"."editor.defaultFormatter" = "biomejs.biome";
       "svelte.enable-ts-plugin" = true;
       "playwright.reuseBrowser" = true;
     };