diff --git a/.eslintrc b/.eslintrc
new file mode 100644
index 000000000..bdf50ffb2
--- /dev/null
+++ b/.eslintrc
@@ -0,0 +1,3 @@
+{
+  "extends": "@1stg/eslint-config/recommended"
+}
diff --git a/.gitignore b/.gitignore
index 53990f734..3718b8733 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,3 +4,4 @@
 coverage
 lib
 node_modules
+/packages/named-exports/index.ts
diff --git a/lerna.json b/lerna.json
index fc02a7b13..bca4938b8 100644
--- a/lerna.json
+++ b/lerna.json
@@ -23,6 +23,7 @@
     "publish": {
       "ignoreChanges": [
         "test",
+        "tsconfig.json",
         "*.md"
       ]
     }
diff --git a/package.json b/package.json
index 5d77bc28b..917adce8c 100644
--- a/package.json
+++ b/package.json
@@ -11,7 +11,7 @@
     "packages/*"
   ],
   "scripts": {
-    "build": "run-p build:**",
+    "build": "lerna run build && run-p build:**",
     "build:bundle": "r -e named -p",
     "build:ts": "tsc -b",
     "clean": "rm -rf packages/*/lib",
@@ -34,6 +34,8 @@
     "@babel/core": "^7.6.2",
     "@commitlint/cli": "^8.2.0",
     "@types/jest": "^24.0.18",
+    "@types/node": "^12.7.5",
+    "@types/prettier": "^1.18.2",
     "eslint": "^6.4.0",
     "husky": "^3.0.5",
     "jest": "^24.9.0",
@@ -43,8 +45,11 @@
     "npm-run-all": "^4.1.5",
     "prettier": "^1.18.2",
     "prettier-plugin-pkg": "^0.3.0",
+    "react": "^16.9.0",
+    "react-dom": "^16.9.0",
     "rollup": "^1.21.4",
     "ts-jest": "^24.1.0",
+    "ts-node": "^8.4.1",
     "type-coverage": "^2.3.0",
     "typescript": "^3.6.3"
   },
@@ -53,13 +58,12 @@
       "@1stg"
     ]
   },
-  "eslintConfig": {
-    "extends": "@1stg/eslint-config/recommended"
-  },
   "eslintIgnore": [
     "coverage",
     "lib",
-    "packages/*/CHANGELOG.md"
+    "packages/*/CHANGELOG.md",
+    "packages/named-exports/index.ts",
+    "!.*.js"
   ],
   "jest": {
     "preset": "ts-jest",
diff --git a/packages/named-exports/README.md b/packages/named-exports/README.md
new file mode 100644
index 000000000..3c48e7818
--- /dev/null
+++ b/packages/named-exports/README.md
@@ -0,0 +1,57 @@
+# @pkgr/named-exports
+
+[![npm](https://img.shields.io/npm/v/@pkgr/named-exports.svg)](https://www.npmjs.com/package/@pkgr/named-exports)
+![npm bundle size](https://img.shields.io/bundlephobia/min/@pkgr/named-exports)
+![npm bundle size](https://img.shields.io/bundlephobia/minzip/@pkgr/named-exports)
+
+[![David Peer](https://img.shields.io/david/peer/rx-ts/pkgr.svg?path=packages/named-exports)](https://david-dm.org/rx-ts/pkgr?path=packages/named-exports&type=peer)
+[![David](https://img.shields.io/david/rx-ts/pkgr.svg?path=packages/named-exports)](https://david-dm.org/rx-ts/pkgr?path=packages/named-exports)
+[![David Dev](https://img.shields.io/david/dev/rx-ts/pkgr.svg?path=packages/named-exports)](https://david-dm.org/rx-ts/pkgr?path=packages/named-exports&type=dev)
+
+> Union `namedExports` definitions for [rollup-plugin-commonjs][].
+
+## TOC <!-- omit in toc -->
+
+- [Install](#install)
+- [Usage](#usage)
+- [Changelog](#changelog)
+- [License](#license)
+
+## Install
+
+```sh
+# yarn
+yarn add -D @pkgr/named-exports
+
+# npm
+npm i -D @pkgr/named-exports
+```
+
+## Usage
+
+```js
+// rollup.config.js
+import commonjs from 'rollup-plugin-commonjs'
+import { namedExports } from '@pkgr/named-exports'
+
+export default {
+  plugins: [
+    commonjs({
+      namedExports,
+    }),
+  ],
+}
+```
+
+## Changelog
+
+Detailed changes for each release are documented in [CHANGELOG.md](./CHANGELOG.md).
+
+## License
+
+[MIT][] © [JounQin][]@[1stG.me][]
+
+[1stg.me]: https://www.1stg.me
+[jounqin]: https://GitHub.com/JounQin
+[mit]: http://opensource.org/licenses/MIT
+[rollup-plugin-commonjs]: https://github.com/rollup/rollup-plugin-commonjs#custom-named-exports
diff --git a/packages/named-exports/build.ts b/packages/named-exports/build.ts
new file mode 100644
index 000000000..c13296830
--- /dev/null
+++ b/packages/named-exports/build.ts
@@ -0,0 +1,25 @@
+import fs from 'fs'
+import path from 'path'
+
+// eslint-disable-next-line node/no-extraneous-import
+import prettier from 'prettier'
+
+const PKGS = ['prettier', 'react', 'react-dom']
+
+const namedExports = PKGS.reduce(
+  (acc, pkg) =>
+    Object.assign(acc, {
+      // eslint-disable-next-line @typescript-eslint/no-require-imports, @typescript-eslint/no-var-requires
+      [pkg]: Object.keys(require(pkg)).filter(key => !/^[_$]/.test(key)),
+    }),
+  {},
+)
+
+fs.writeFileSync(
+  path.resolve(__dirname, 'index.ts'),
+  prettier.format(`
+export const namedExports = ${JSON.stringify(namedExports)}
+
+export { namedExports as default }
+`),
+)
diff --git a/packages/named-exports/package.json b/packages/named-exports/package.json
new file mode 100644
index 000000000..5b27b8133
--- /dev/null
+++ b/packages/named-exports/package.json
@@ -0,0 +1,33 @@
+{
+  "name": "@pkgr/named-exports",
+  "version": "0.0.0",
+  "description": "Union `namedExports` definitions for rollup-plugin-commonjs",
+  "repository": "git+https://github.com/rx-ts/pkgr.git",
+  "homepage": "https://github.com/rx-ts/pkgr/blob/master/packages/named-exports",
+  "author": "JounQin <admin@1stg.me>",
+  "license": "MIT",
+  "main": "lib/cjs",
+  "module": "lib",
+  "es2015": "lib/es2015",
+  "fesm5": "lib/esm",
+  "jsdelivr": "lib/umd",
+  "unpkg": "lib/umd",
+  "types": "lib",
+  "files": [
+    "lib"
+  ],
+  "keywords": [
+    "named-exports",
+    "rollup",
+    "rollup-config",
+    "rollup-plugin",
+    "rollup-plugin-commonjs"
+  ],
+  "scripts": {
+    "build": "ts-node -O '{\"module\":\"commonjs\"}' build"
+  },
+  "publishConfig": {
+    "access": "public"
+  },
+  "sideEffects": false
+}
diff --git a/packages/named-exports/test/test.spec.ts b/packages/named-exports/test/test.spec.ts
new file mode 100644
index 000000000..91a0e5a12
--- /dev/null
+++ b/packages/named-exports/test/test.spec.ts
@@ -0,0 +1,19 @@
+import _, { namedExports } from '../index'
+
+describe('named exports', () => {
+  it('default export and `namedExports` named export should be same exactly ', () =>
+    expect(_).toBe(namedExports))
+
+  it('should be a string array map', () =>
+    expect(
+      Object.values(namedExports).every(
+        exports =>
+          Array.isArray(exports) && exports.every(_ => typeof _ === 'string'),
+      ),
+    ).toBeTruthy())
+
+  it('should not include any private member nor property', () =>
+    expect(
+      Object.values(namedExports).every(_ => _.every(_ => !/^[_$]/.test(_))),
+    ).toBeTruthy())
+})
diff --git a/packages/named-exports/tsconfig.json b/packages/named-exports/tsconfig.json
new file mode 100644
index 000000000..cab4047d3
--- /dev/null
+++ b/packages/named-exports/tsconfig.json
@@ -0,0 +1,7 @@
+{
+  "extends": "@1stg/tsconfig/composite",
+  "compilerOptions": {
+    "outDir": "lib"
+  },
+  "files": ["index.ts"]
+}
diff --git a/packages/umd-globals/test/test.spec.ts b/packages/umd-globals/test/test.spec.ts
index 7412c3166..871297c6d 100644
--- a/packages/umd-globals/test/test.spec.ts
+++ b/packages/umd-globals/test/test.spec.ts
@@ -8,7 +8,7 @@ import _, {
 } from '../index'
 
 describe('umd globals', () => {
-  it('default export and globals named export should be same exactly ', () =>
+  it('default export and `globals` named export should be same exactly ', () =>
     expect(_).toBe(globals))
 
   it('should be a string map', () =>
diff --git a/packages/umd-globals/tsconfig.json b/packages/umd-globals/tsconfig.json
index db6ec5aa3..f982a5a4c 100644
--- a/packages/umd-globals/tsconfig.json
+++ b/packages/umd-globals/tsconfig.json
@@ -3,5 +3,5 @@
   "compilerOptions": {
     "outDir": "lib"
   },
-  "exclude": ["test"]
+  "exclude": ["lib", "test"]
 }
diff --git a/tsconfig.base.json b/tsconfig.base.json
deleted file mode 100644
index af6a7d477..000000000
--- a/tsconfig.base.json
+++ /dev/null
@@ -1,3 +0,0 @@
-{
-  "extends": "@1stg/tsconfig/tsconfig"
-}
diff --git a/tsconfig.json b/tsconfig.json
index 3e433c6ac..4eaa43221 100644
--- a/tsconfig.json
+++ b/tsconfig.json
@@ -1,5 +1,5 @@
 {
-  "extends": "./tsconfig.base.json",
+  "extends": "@1stg/tsconfig",
   "compilerOptions": {
     "incremental": false,
     "noEmit": true
@@ -7,6 +7,9 @@
   "references": [
     {
       "path": "packages/umd-globals"
+    },
+    {
+      "path": "packages/named-exports"
     }
   ]
 }
diff --git a/yarn.lock b/yarn.lock
index 18b2c8a1b..69fa946af 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -2512,6 +2512,11 @@
   resolved "https://registry.yarnpkg.com/@types/normalize-package-data/-/normalize-package-data-2.4.0.tgz#e486d0d97396d79beedd0a6e33f4534ff6b4973e"
   integrity sha512-f5j5b/Gf71L+dbqxIpQ4Z2WlmI/mPJ0fOkGGmFgtb6sAu97EPczzbS3/tJKxmcYDj55OX6ssqwDAWOHIYDRDGA==
 
+"@types/prettier@^1.18.2":
+  version "1.18.2"
+  resolved "https://registry.yarnpkg.com/@types/prettier/-/prettier-1.18.2.tgz#069e7d132024d436fd1f5771f6932426a695f230"
+  integrity sha512-2JBasa5Qaj81Qsp/dxX2Njy+MdKC767WytHUDsRM7TYEfQvKPxsnGpnCBlBS1i2Aiv1YwCpmKSbQ6O6v8TpiKg==
+
 "@types/resolve@0.0.8":
   version "0.0.8"
   resolved "https://registry.yarnpkg.com/@types/resolve/-/resolve-0.0.8.tgz#f26074d238e02659e323ce1a13d041eee280e194"
@@ -2847,6 +2852,11 @@ are-we-there-yet@~1.1.2:
     delegates "^1.0.0"
     readable-stream "^2.0.6"
 
+arg@^4.1.0:
+  version "4.1.1"
+  resolved "https://registry.yarnpkg.com/arg/-/arg-4.1.1.tgz#485f8e7c390ce4c5f78257dbea80d4be11feda4c"
+  integrity sha512-SlmP3fEA88MBv0PypnXZ8ZfJhwmDeIE3SP71j37AiXQBXYosPV0x6uISAaHYSlSVhmHOVkomen0tbGk6Anlebw==
+
 argparse@^1.0.7:
   version "1.0.10"
   resolved "https://registry.yarnpkg.com/argparse/-/argparse-1.0.10.tgz#bcd6791ea5ae09725e17e5ad988134cd40b3d911"
@@ -4053,6 +4063,11 @@ diff-sequences@^24.9.0:
   resolved "https://registry.yarnpkg.com/diff-sequences/-/diff-sequences-24.9.0.tgz#5715d6244e2aa65f48bba0bc972db0b0b11e95b5"
   integrity sha512-Dj6Wk3tWyTE+Fo1rW8v0Xhwk80um6yFYKbuAxc9c3EZxIHFDYwbi34Uk42u1CdnIiVorvt4RmlSDjIPyzGC2ew==
 
+diff@^4.0.1:
+  version "4.0.1"
+  resolved "https://registry.yarnpkg.com/diff/-/diff-4.0.1.tgz#0c667cb467ebbb5cea7f14f135cc2dba7780a8ff"
+  integrity sha512-s2+XdvhPCOF01LRQBC8hf4vhbVmI2CGS5aZnxLJlT5FtdhPCDFq80q++zK2KlrVorVDdL5BOGZ/VfLrVtYNF+Q==
+
 dir-glob@^2.2.2:
   version "2.2.2"
   resolved "https://registry.yarnpkg.com/dir-glob/-/dir-glob-2.2.2.tgz#fa09f0694153c8918b18ba0deafae94769fc50c4"
@@ -6770,7 +6785,7 @@ longest-streak@^2.0.1:
   resolved "https://registry.yarnpkg.com/longest-streak/-/longest-streak-2.0.3.tgz#3de7a3f47ee18e9074ded8575b5c091f5d0a4105"
   integrity sha512-9lz5IVdpwsKLMzQi0MQ+oD9EA0mIGcWYP7jXMTZVXP8D42PwuAk+M/HBFYQoxt1G5OR8m7aSIgb1UymfWGBWEw==
 
-loose-envify@^1.0.0, loose-envify@^1.4.0:
+loose-envify@^1.0.0, loose-envify@^1.1.0, loose-envify@^1.4.0:
   version "1.4.0"
   resolved "https://registry.yarnpkg.com/loose-envify/-/loose-envify-1.4.0.tgz#71ee51fa7be4caec1a63839f7e682d8132d30caf"
   integrity sha512-lyuxPGr/Wfhrlem2CL/UcnUc1zcqKAImBDzukY7Y5F/yQiNdko6+fRLevlw1HgMySw7f611UIY408EtxRSoK3Q==
@@ -6827,7 +6842,7 @@ make-dir@^2.1.0:
     pify "^4.0.1"
     semver "^5.6.0"
 
-make-error@1.x:
+make-error@1.x, make-error@^1.1.1:
   version "1.3.5"
   resolved "https://registry.yarnpkg.com/make-error/-/make-error-1.3.5.tgz#efe4e81f6db28cadd605c70f29c831b58ef776c8"
   integrity sha512-c3sIjNUow0+8swNwVpqoH4YCShKNFkMaw6oH1mNS2haDZQqkeZFlHS3dhoeEbKKmJB4vXpJucU6oH75aDYeE9g==
@@ -8117,7 +8132,7 @@ promzard@^0.3.0:
   dependencies:
     read "1"
 
-prop-types@^15.7.2:
+prop-types@^15.6.2, prop-types@^15.7.2:
   version "15.7.2"
   resolved "https://registry.yarnpkg.com/prop-types/-/prop-types-15.7.2.tgz#52c41e75b8c87e72b9d9360e0206b99dcbffa6c5"
   integrity sha512-8QQikdH7//R2vurIJSutZ1smHYTcLpRWEOlHnzcWHmBYrOGUysKwSsrC89BCiFj3CbrfJ/nXFdJepOVrY1GCHQ==
@@ -8227,11 +8242,30 @@ rc@^1.2.7:
     minimist "^1.2.0"
     strip-json-comments "~2.0.1"
 
+react-dom@^16.9.0:
+  version "16.9.0"
+  resolved "https://registry.yarnpkg.com/react-dom/-/react-dom-16.9.0.tgz#5e65527a5e26f22ae3701131bcccaee9fb0d3962"
+  integrity sha512-YFT2rxO9hM70ewk9jq0y6sQk8cL02xm4+IzYBz75CQGlClQQ1Bxq0nhHF6OtSbit+AIahujJgb/CPRibFkMNJQ==
+  dependencies:
+    loose-envify "^1.1.0"
+    object-assign "^4.1.1"
+    prop-types "^15.6.2"
+    scheduler "^0.15.0"
+
 react-is@^16.8.1, react-is@^16.8.4:
   version "16.9.0"
   resolved "https://registry.yarnpkg.com/react-is/-/react-is-16.9.0.tgz#21ca9561399aad0ff1a7701c01683e8ca981edcb"
   integrity sha512-tJBzzzIgnnRfEm046qRcURvwQnZVXmuCbscxUO5RWrGTXpon2d4c8mI0D8WE6ydVIm29JiLB6+RslkIvym9Rjw==
 
+react@^16.9.0:
+  version "16.9.0"
+  resolved "https://registry.yarnpkg.com/react/-/react-16.9.0.tgz#40ba2f9af13bc1a38d75dbf2f4359a5185c4f7aa"
+  integrity sha512-+7LQnFBwkiw+BobzOF6N//BdoNw0ouwmSJTEm9cglOOmsg/TMiFHZLe2sEoN5M7LgJTj9oHH0gxklfnQe66S1w==
+  dependencies:
+    loose-envify "^1.1.0"
+    object-assign "^4.1.1"
+    prop-types "^15.6.2"
+
 read-cmd-shim@^1.0.1:
   version "1.0.4"
   resolved "https://registry.yarnpkg.com/read-cmd-shim/-/read-cmd-shim-1.0.4.tgz#b4a53d43376211b45243f0072b6e603a8e37640d"
@@ -9492,6 +9526,14 @@ sax@^1.2.4:
   resolved "https://registry.yarnpkg.com/sax/-/sax-1.2.4.tgz#2816234e2378bddc4e5354fab5caa895df7100d9"
   integrity sha512-NqVDv9TpANUjFm0N8uM5GxL36UgKi9/atZw+x7YFnQ8ckwFGKrl4xX4yWtrey3UJm5nP1kUbnYgLopqWNSRhWw==
 
+scheduler@^0.15.0:
+  version "0.15.0"
+  resolved "https://registry.yarnpkg.com/scheduler/-/scheduler-0.15.0.tgz#6bfcf80ff850b280fed4aeecc6513bc0b4f17f8e"
+  integrity sha512-xAefmSfN6jqAa7Kuq7LIJY0bwAPG3xlCj0HMEBQk1lxYiDKZscY2xJ5U/61ZTrYbmNQbXa+gc7czPkVo11tnCg==
+  dependencies:
+    loose-envify "^1.1.0"
+    object-assign "^4.1.1"
+
 semver-compare@^1.0.0:
   version "1.0.0"
   resolved "https://registry.yarnpkg.com/semver-compare/-/semver-compare-1.0.0.tgz#0dee216a1c941ab37e9efb1788f6afc5ff5537fc"
@@ -10292,6 +10334,17 @@ ts-lib-utils@^2.2.0:
     glob "7"
     tslib "1"
 
+ts-node@^8.4.1:
+  version "8.4.1"
+  resolved "https://registry.yarnpkg.com/ts-node/-/ts-node-8.4.1.tgz#270b0dba16e8723c9fa4f9b4775d3810fd994b4f"
+  integrity sha512-5LpRN+mTiCs7lI5EtbXmF/HfMeCjzt7DH9CZwtkr6SywStrNQC723wG+aOWFiLNn7zT3kD/RnFqi3ZUfr4l5Qw==
+  dependencies:
+    arg "^4.1.0"
+    diff "^4.0.1"
+    make-error "^1.1.1"
+    source-map-support "^0.5.6"
+    yn "^3.0.0"
+
 tsconfig-paths@^3.9.0:
   version "3.9.0"
   resolved "https://registry.yarnpkg.com/tsconfig-paths/-/tsconfig-paths-3.9.0.tgz#098547a6c4448807e8fcb8eae081064ee9a3c90b"
@@ -10987,3 +11040,8 @@ yargs@^13.3.0:
     which-module "^2.0.0"
     y18n "^4.0.0"
     yargs-parser "^13.1.1"
+
+yn@^3.0.0:
+  version "3.1.1"
+  resolved "https://registry.yarnpkg.com/yn/-/yn-3.1.1.tgz#1e87401a09d767c1d5eab26a6e4c185182d2eb50"
+  integrity sha512-Ux4ygGWsu2c7isFWe8Yu1YluJmqVhxqK2cLXNQA5AcC3QfbGNpM7fu0Y8b/z16pXLnFxZYvWhd3fhBY9DLmC6Q==