diff --git a/.gitignore b/.gitignore
index b7e26c2..f79cfd2 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,6 +9,7 @@
 # production
 /build
 /lib
+/lib-without-polyfill
 
 # misc
 .DS_Store
diff --git a/babel-without-polyfill.config.json b/babel-without-polyfill.config.json
new file mode 100644
index 0000000..be91d70
--- /dev/null
+++ b/babel-without-polyfill.config.json
@@ -0,0 +1,20 @@
+{
+    "presets": [
+        [
+            "@babel/preset-env",
+            {
+                "targets": "> 0.25%, not dead",
+                "useBuiltIns": false,
+                "corejs": 3
+            }
+        ],
+        "@babel/preset-typescript"
+    ],
+    "plugins": [
+        "@babel/plugin-transform-runtime",
+        "@babel/plugin-proposal-class-properties",
+        "@babel/plugin-proposal-object-rest-spread",
+        "@babel/plugin-proposal-optional-chaining",
+        "lodash"
+    ]
+}
diff --git a/.babelrc b/babel.config.json
similarity index 100%
rename from .babelrc
rename to babel.config.json
diff --git a/package.json b/package.json
index 8c107dc..5c641e5 100644
--- a/package.json
+++ b/package.json
@@ -21,11 +21,12 @@
     "test": "echo \"Error: no test specified\" && exit 0",
     "start": "NODE_ENV=development webpack-dev-server",
     "build": "rm -rf build/ && NODE_ENV=production webpack",
-    "build:lib": "rm -rf lib/ && babel src/ -d lib/ -x \".js\",\".ts\" --source-maps --ignore \"src/**/__tests__/**/*\"",
+    "build:lib": "rm -rf lib/ && babel src/ -d lib/ -x \".js\",\".ts\" --config-file \"./babel.config.json\" --source-maps --ignore \"src/**/__tests__/**/*\"",
+    "build:lib-without-polyfill": "rm -rf lib-without-polyfill/ && babel src/ -d lib-without-polyfill/ -x \".js\",\".ts\" --config-file \"./babel-without-polyfill.config.json\" --source-maps --ignore \"src/**/__tests__/**/*\"",
     "stats": "NODE_ENV=production webpack --profile --json > stats.json",
     "analyzer": "ANALYZER=true NODE_ENV=production webpack",
     "ci": "node --version && babel --version",
-    "before-publish": "npm run build && npm run build:lib",
+    "before-publish": "npm run build && npm run build:lib && npm run build:lib-without-polyfill",
     "publish:patch": "npm run before-publish && npm version patch && npm publish",
     "publish:minor": "npm run before-publish && npm version minor && npm publish",
     "publish:major": "npm run before-publish && npm version major && npm publish",
diff --git a/webpack.config.js b/webpack.config.js
index 7820401..a9b7105 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -6,9 +6,11 @@ const isDevelopment = env === 'development';
 const analyzer = process.env.ANALYZER;
 const BundleAnalyzerPlugin = require('webpack-bundle-analyzer').BundleAnalyzerPlugin;
 
+const babelOptions = require('./babel.config.json');
+
 const webpackConfig = {
     entry: {
-        main: './src/index.ts'
+        rapiop: './src/index.ts'
     },
     output: {
         path: path.resolve(__dirname, 'build'),
@@ -27,7 +29,10 @@ const webpackConfig = {
         rules: [
             {
                 test: /\.(ts|js)$/,
-                use: 'babel-loader',
+                use: {
+                    loader: 'babel-loader',
+                    options: babelOptions
+                },
                 exclude: /node_modules/
             }
         ]