openAgent

1diff --git a/src/download.ts b/src/download.ts
2index 3454256..6dca25a 100644
3--- a/src/download.ts
4+++ b/src/download.ts
5@@ -7,7 +7,7 @@
6  */
7 
8+declare const FFF_LIBC: "gnu" | "musl";
9 import { existsSync } from "node:fs";
10-import { createRequire } from "node:module";
11 import { dirname, join } from "node:path";
12 import { fileURLToPath } from "node:url";
13 import { getLibFilename, getNpmPackageName } from "./platform";
14@@ -54,14 +54,10 @@ export function binaryExists(): boolean {
15  * in the same directory.
16  */
17 function resolveFromNpmPackage(): string | null {
18-  const packageName = getNpmPackageName();
19-
20   try {
21-    // Use createRequire to resolve the platform package's location
22-    const require = createRequire(join(getPackageDir(), "package.json"));
23-    const packageJsonPath = require.resolve(`${packageName}/package.json`);
24-    const packageDir = dirname(packageJsonPath);
25-    const binaryPath = join(packageDir, getLibFilename());
26+    const binaryPath = require(
27+      `@ff-labs/fff-bin-${process.platform === "linux" ? `linux-${process.arch}-${typeof FFF_LIBC === "string" ? FFF_LIBC : getNpmPackageName().endsWith("musl") ? "musl" : "gnu"}` : `${process.platform}-${process.arch}`}/${process.platform === "win32" ? "fff_c.dll" : process.platform === "darwin" ? "libfff_c.dylib" : "libfff_c.so"}`,
28+    );
29 
30     if (existsSync(binaryPath)) {
31       return binaryPath;
32