diff --git a/bun.lock b/bun.lock
index 7d5ea89d945..7bb937ce5dc 100644
--- a/bun.lock
+++ b/bun.lock
@@ -914,6 +914,7 @@
   "patchedDependencies": {
     "solid-js@1.9.10": "patches/solid-js@1.9.10.patch",
     "virtua@0.49.1": "patches/virtua@0.49.1.patch",
+    "@ff-labs/fff-bun@0.9.3": "patches/@ff-labs%2Ffff-bun@0.9.3.patch",
     "gcp-metadata@8.1.2": "patches/gcp-metadata@8.1.2.patch",
     "@ai-sdk/google@3.0.73": "patches/@ai-sdk%2Fgoogle@3.0.73.patch",
     "@ai-sdk/xai@3.0.82": "patches/@ai-sdk%2Fxai@3.0.82.patch",
diff --git a/package.json b/package.json
index 61800b8fa74..8ea2430ac6c 100644
--- a/package.json
+++ b/package.json
@@ -140,6 +140,7 @@
     "@types/node": "catalog:"
   },
   "patchedDependencies": {
+    "@ff-labs/fff-bun@0.9.3": "patches/@ff-labs%2Ffff-bun@0.9.3.patch",
     "@npmcli/agent@4.0.2": "patches/@npmcli%2Fagent@4.0.2.patch",
     "@silvia-odwyer/photon-node@0.3.4": "patches/@silvia-odwyer%2Fphoton-node@0.3.4.patch",
     "@standard-community/standard-openapi@0.2.9": "patches/@standard-community%2Fstandard-openapi@0.2.9.patch",
diff --git a/packages/opencode/script/build.ts b/packages/opencode/script/build.ts
index 782aa07c733..09300965fe4 100755
--- a/packages/opencode/script/build.ts
+++ b/packages/opencode/script/build.ts
@@ -165,7 +165,7 @@ for (const item of targets) {
   const workerRelativePath = path.relative(dir, parserWorker).replaceAll("\\", "/")
 
   await Bun.build({
-    conditions: ["node"],
+    conditions: ["bun", "node"],
     tsconfig: "./tsconfig.json",
     plugins: [plugin],
     external: ["node-gyp"],
diff --git a/patches/@ff-labs%2Ffff-bun@0.9.3.patch b/patches/@ff-labs%2Ffff-bun@0.9.3.patch
new file mode 100644
index 00000000000..b60128af9e1
--- /dev/null
+++ b/patches/@ff-labs%2Ffff-bun@0.9.3.patch
@@ -0,0 +1,34 @@
+diff --git a/src/download.ts b/src/download.ts
+index 3454256..6dca25a 100644
+--- a/src/download.ts
++++ b/src/download.ts
+@@ -7,7 +7,6 @@
+  */
+ 
+ import { existsSync } from "node:fs";
+-import { createRequire } from "node:module";
+ import { dirname, join } from "node:path";
+ import { fileURLToPath } from "node:url";
+ import { getLibFilename, getNpmPackageName } from "./platform";
+@@ -54,14 +53,14 @@ export function binaryExists(): boolean {
+  * in the same directory.
+  */
+ function resolveFromNpmPackage(): string | null {
+-  const packageName = getNpmPackageName();
+-
+   try {
+-    // Use createRequire to resolve the platform package's location
+-    const require = createRequire(join(getPackageDir(), "package.json"));
+-    const packageJsonPath = require.resolve(`${packageName}/package.json`);
+-    const packageDir = dirname(packageJsonPath);
+-    const binaryPath = join(packageDir, getLibFilename());
++    const binaryPath = process.platform === "win32"
++      ? require(`../../../../../@ff-labs+fff-bin-win32-${process.arch}@0.9.3/node_modules/@ff-labs/fff-bin-win32-${process.arch}/fff_c.dll`)
++      : process.platform === "darwin"
++        ? require(`../../../../../@ff-labs+fff-bin-darwin-${process.arch}@0.9.3/node_modules/@ff-labs/fff-bin-darwin-${process.arch}/libfff_c.dylib`)
++        : getNpmPackageName().endsWith("musl")
++          ? require(`../../../../../@ff-labs+fff-bin-linux-${process.arch}-musl@0.9.3/node_modules/@ff-labs/fff-bin-linux-${process.arch}-musl/libfff_c.so`)
++          : require(`../../../../../@ff-labs+fff-bin-linux-${process.arch}-gnu@0.9.3/node_modules/@ff-labs/fff-bin-linux-${process.arch}-gnu/libfff_c.so`);
+ 
+     if (existsSync(binaryPath)) {
+       return binaryPath;