add build config

vite.config.ts

@@ -1,7 +1,35 @@
+import { resolve } from 'path'
+
 import react from '@vitejs/plugin-react'
 import { defineConfig } from 'vite'
 
+import { dependencies, devDependencies, peerDependencies } from './package.json'
+
 // https://vitejs.dev/config/
 export default defineConfig({
+  build: {
+    lib: {
+      // Could also be a dictionary or array of multiple entry points
+      entry: resolve(__dirname, 'src/index.ts'),
+      // the proper extensions will be added
+      fileName: 'index',
+      formats: ['es'],
+      name: 'bundlers',
+    },
+    rollupOptions: {
+      external: [
+        ...Object.keys(peerDependencies),
+        ...Object.keys(dependencies),
+        ...Object.keys(devDependencies),
+      ],
+      output: {
+        dir: 'dist',
+        entryFileNames: '[name].js',
+        format: 'es',
+      },
+    },
+    sourcemap: true,
+    target: 'esnext',
+  },
   plugins: [react()],
 })