diff --git a/tsdown.config.ts b/tsdown.config.ts
index 46fa88e..6a6c416 100644
--- a/tsdown.config.ts
+++ b/tsdown.config.ts
@@ -1,37 +1,45 @@
 import { defineConfig, type UserConfig } from 'tsdown';
-import { copyFileSync, rmSync, readFileSync, writeFileSync } from 'node:fs';
+import { copyFileSync, rmSync } from 'node:fs';
 
-const tsdownConfig: UserConfig = defineConfig({
-  target: 'es2023',
-  entry: [
-    'src/index.js',
-    'src/node.js',
-    'src/index.d.ts',
-    'src/bin/sqlite3-opfs-async-proxy.js',
-    'src/bin/sqlite3-worker1.mjs',
-  ],
-  format: ['esm'],
-  minify: 'dce-only',
-  outputOptions: {
-    legalComments: 'inline',
-  },
-  onSuccess: () => {
-    copyFileSync('./src/bin/sqlite3.wasm', './dist/sqlite3.wasm');
-    copyFileSync(
-      './dist/bin/sqlite3-worker1.mjs',
-      './dist/sqlite3-worker1.mjs',
-    );
-    // Remove "export {};" to make sure sqlite3-opfs-async-proxy.js isn't a module
-    const proxyContent = readFileSync(
-      './dist/bin/sqlite3-opfs-async-proxy.mjs',
-      'utf-8',
-    );
-    writeFileSync(
-      './dist/sqlite3-opfs-async-proxy.js',
-      proxyContent.replace(/export\s*\{\s*}\s*;\s*$/, ''),
-    );
-    rmSync('./dist/bin', { recursive: true });
-  },
-});
+const tsdownConfig: UserConfig[] = [
+  defineConfig({
+    target: 'es2023',
+    entry: [
+      'src/index.js',
+      'src/node.js',
+      'src/index.d.ts',
+      'src/bin/sqlite3-worker1.mjs',
+    ],
+    format: ['esm'],
+    minify: 'dce-only',
+    outputOptions: {
+      legalComments: 'inline',
+    },
+    onSuccess: () => {
+      copyFileSync('./src/bin/sqlite3.wasm', './dist/sqlite3.wasm');
+      copyFileSync(
+        './dist/bin/sqlite3-worker1.mjs',
+        './dist/sqlite3-worker1.mjs',
+      );
+    },
+  }),
+  defineConfig({
+    target: 'es2023',
+    entry: ['src/bin/sqlite3-opfs-async-proxy.js'],
+    format: ['iife'],
+    minify: 'dce-only',
+    outputOptions: {
+      legalComments: 'inline',
+    },
+    onSuccess: () => {
+      copyFileSync(
+        './dist/sqlite3-opfs-async-proxy.iife.js',
+        './dist/sqlite3-opfs-async-proxy.js',
+      );
+      rmSync('./dist/sqlite3-opfs-async-proxy.iife.js');
+      rmSync('./dist/bin', { recursive: true, force: true });
+    },
+  }),
+];
 
 export default tsdownConfig;