diff --git a/packages/serial/package.json b/packages/serial/package.json
index 4ca223cd..5b5a4680 100644
--- a/packages/serial/package.json
+++ b/packages/serial/package.json
@@ -1,8 +1,15 @@
 {
   "name": "@strudel.cycles/serial",
-  "version": "0.3.0",
+  "version": "0.6.0",
   "description": "Webserial API for strudel",
   "main": "serial.mjs",
+  "publishConfig": {
+    "main": "dist/index.js",
+    "module": "dist/index.mjs"
+  },
+  "scripts": {
+    "build": "vite build"
+  },
   "repository": {
     "type": "git",
     "url": "git+https://github.com/tidalcycles/strudel.git"
@@ -22,5 +29,8 @@
   "homepage": "https://github.com/tidalcycles/strudel#readme",
   "dependencies": {
     "@strudel.cycles/core": "workspace:*"
+  },
+  "devDependencies": {
+    "vite": "^3.2.2"
   }
 }
diff --git a/packages/serial/vite.config.js b/packages/serial/vite.config.js
new file mode 100644
index 00000000..070609bf
--- /dev/null
+++ b/packages/serial/vite.config.js
@@ -0,0 +1,19 @@
+import { defineConfig } from 'vite';
+import { dependencies } from './package.json';
+import { resolve } from 'path';
+
+// https://vitejs.dev/config/
+export default defineConfig({
+  plugins: [],
+  build: {
+    lib: {
+      entry: resolve(__dirname, 'serial.mjs'),
+      formats: ['es', 'cjs'],
+      fileName: (ext) => ({ es: 'index.mjs', cjs: 'index.js' }[ext]),
+    },
+    rollupOptions: {
+      external: [...Object.keys(dependencies)],
+    },
+    target: 'esnext',
+  },
+});
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index a3aec83b..5ad1d0f7 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -186,8 +186,11 @@ importers:
   packages/serial:
     specifiers:
       '@strudel.cycles/core': workspace:*
+      vite: ^3.2.2
     dependencies:
       '@strudel.cycles/core': link:../core
+    devDependencies:
+      vite: 3.2.5
 
   packages/soundfonts:
     specifiers: