diff --git a/packages/build-scripts/package.json b/packages/build-scripts/package.json
index 65101fd9b8fe..add1908d18c7 100644
--- a/packages/build-scripts/package.json
+++ b/packages/build-scripts/package.json
@@ -3,6 +3,7 @@
     "version": "0.0.0",
     "private": true,
     "files": [
+        "register-node-globals.mjs",
         "tsup.config.library.ts",
         "tsup.config.package.ts"
     ],
diff --git a/packages/build-scripts/register-node-globals.cjs b/packages/build-scripts/register-node-globals.cjs
new file mode 100644
index 000000000000..f4007d6640ca
--- /dev/null
+++ b/packages/build-scripts/register-node-globals.cjs
@@ -0,0 +1,4 @@
+globalThis.__DEV__ = false;
+globalThis.__BROWSER = false;
+globalThis.__NODEJS__ = true;
+globalThis.__REACTNATIVE__ = false;
diff --git a/packages/codecs-core/src/__benchmarks__/run.ts b/packages/codecs-core/src/__benchmarks__/run.ts
index c67641292f43..ed37a47f518a 100755
--- a/packages/codecs-core/src/__benchmarks__/run.ts
+++ b/packages/codecs-core/src/__benchmarks__/run.ts
@@ -1,4 +1,4 @@
-#!/usr/bin/env -S pnpm dlx tsx
+#!/usr/bin/env -S pnpm dlx tsx -r ../build-scripts/register-node-globals.cjs
 
 import { webcrypto as crypto } from 'node:crypto';
 
diff --git a/packages/codecs-strings/src/__benchmarks__/run.ts b/packages/codecs-strings/src/__benchmarks__/run.ts
index d48793060422..ff47932959bc 100755
--- a/packages/codecs-strings/src/__benchmarks__/run.ts
+++ b/packages/codecs-strings/src/__benchmarks__/run.ts
@@ -1,4 +1,4 @@
-#!/usr/bin/env -S pnpm dlx tsx
+#!/usr/bin/env -S pnpm dlx tsx -r ../build-scripts/register-node-globals.cjs
 
 import { webcrypto as crypto } from 'node:crypto';
 
diff --git a/packages/fetch-impl/src/__benchmarks__/run.ts b/packages/fetch-impl/src/__benchmarks__/run.ts
index 06295f7a778e..1ff3bc876e0e 100755
--- a/packages/fetch-impl/src/__benchmarks__/run.ts
+++ b/packages/fetch-impl/src/__benchmarks__/run.ts
@@ -1,4 +1,4 @@
-#!/usr/bin/env -S pnpm dlx tsx
+#!/usr/bin/env -S pnpm dlx tsx -r ../build-scripts/register-node-globals.cjs
 
 import { ok } from 'node:assert';
 import process from 'node:process';
diff --git a/packages/keys/src/__benchmarks__/run.ts b/packages/keys/src/__benchmarks__/run.ts
index 6b134810f810..058ff6410f39 100755
--- a/packages/keys/src/__benchmarks__/run.ts
+++ b/packages/keys/src/__benchmarks__/run.ts
@@ -1,16 +1,9 @@
-#!/usr/bin/env -S pnpm dlx tsx --
+#!/usr/bin/env -S pnpm dlx tsx -r ../build-scripts/register-node-globals.cjs
 
 import { Bench } from 'tinybench';
 
 import { generateKeyPair, SignatureBytes, signBytes, verifySignature } from '../index';
 
-Object.assign(globalThis, {
-    __BROWSER__: false,
-    __DEV__: false,
-    __NODEJS__: true,
-    __REACTNATIVE____: false,
-});
-
 const bench = new Bench({
     throws: true,
 });
diff --git a/packages/rpc-transport-http/src/__benchmarks__/run.ts b/packages/rpc-transport-http/src/__benchmarks__/run.ts
index 5ea867520c42..2b94ab5a564d 100755
--- a/packages/rpc-transport-http/src/__benchmarks__/run.ts
+++ b/packages/rpc-transport-http/src/__benchmarks__/run.ts
@@ -1,4 +1,4 @@
-#!/usr/bin/env -S pnpm dlx tsx --
+#!/usr/bin/env -S pnpm dlx tsx -r ../build-scripts/register-node-globals.cjs
 
 import { ok } from 'node:assert';
 
@@ -15,13 +15,6 @@ ok(
 );
 VALIDATOR_URL ??= 'http://127.0.0.1:8899';
 
-Object.assign(globalThis, {
-    __BROWSER__: false,
-    __DEV__: false,
-    __NODEJS__: true,
-    __REACTNATIVE____: false,
-});
-
 const NUM_CONCURRENT_REQUESTS = 1024;
 
 const bench = new Bench({