diff --git a/modules/home/rsydn/devtools/languages.nix b/modules/home/rsydn/devtools/languages.nix
index e3a929e..45c745d 100644
--- a/modules/home/rsydn/devtools/languages.nix
+++ b/modules/home/rsydn/devtools/languages.nix
@@ -48,6 +48,7 @@ let
   else
     getPkg "nodejs";
   cargoPackage = getPkg "cargo";
+  bunPackage = getPkg "bun";
 
   toolSpecs = [
     {
@@ -70,6 +71,11 @@ let
       cfg = cfg.cargo;
       defaultPackage = cargoPackage;
     }
+    {
+      name = "bun";
+      cfg = cfg.bun;
+      defaultPackage = bunPackage;
+    }
   ];
 
   languagePackages = mkToolPackages toolSpecs;
@@ -102,6 +108,12 @@ in {
       description = "Rust package manager and toolchain.";
     };
 
+    bun = mkToolOption {
+      name = "Bun";
+      defaultPackage = bunPackage;
+      description = "Fast all-in-one JavaScript runtime.";
+    };
+
     extraPackages = mkOption {
       type = types.listOf types.package;
       default = [ ];