diff --git a/packages/jest-environment-puppeteer/README.md b/packages/jest-environment-puppeteer/README.md
index 69f51d35..9872c504 100644
--- a/packages/jest-environment-puppeteer/README.md
+++ b/packages/jest-environment-puppeteer/README.md
@@ -200,6 +200,20 @@ async function getConfig() {
 module.exports = getConfig();
 ```
 
+## Create custom environment
+
+It is possible to create a custom environment from the Jest Puppeteer's one. It is not different from creating a custom environment from "jest-environment-node". See [Jest `testEnvironment` documentation](https://jestjs.io/docs/configuration#testenvironment-string) to learn more about it.
+
+```js
+// my-custom-environment
+const JestPuppeteerEnvironment =
+  require("jest-environment-puppeteer").TestEnvironment;
+
+class CustomEnvironment extends JestPuppeteerEnvironment {
+  // Implement your own environment
+}
+```
+
 ## Inspiration
 
 Thanks to Fumihiro Xue for his great [Jest example](https://github.com/xfumihiro/jest-puppeteer-example).
diff --git a/packages/jest-environment-puppeteer/rollup.config.mjs b/packages/jest-environment-puppeteer/rollup.config.mjs
index 23ae2be7..99018673 100644
--- a/packages/jest-environment-puppeteer/rollup.config.mjs
+++ b/packages/jest-environment-puppeteer/rollup.config.mjs
@@ -35,7 +35,6 @@ export default [
       file: "dist/index.js",
       format: "cjs",
       interop: "compat",
-      exports: "default",
     },
     plugins: [swcPlugin],
   }),
@@ -44,7 +43,7 @@ export default [
     output: {
       file: "dist/index.d.ts",
       format: "es",
-      exports: "default",
+      interop: "compat",
     },
   }),
 ];
diff --git a/packages/jest-environment-puppeteer/src/env.ts b/packages/jest-environment-puppeteer/src/env.ts
index 3d0decd6..a24736ba 100644
--- a/packages/jest-environment-puppeteer/src/env.ts
+++ b/packages/jest-environment-puppeteer/src/env.ts
@@ -21,19 +21,6 @@ type StrictGlobal = {
 
 export type JestPuppeteerGlobal = Required<StrictGlobal>;
 
-declare global {
-  // @ts-ignore
-  var browser: Global["browser"];
-  // @ts-ignore
-  var page: Global["page"];
-  // @ts-ignore
-  var context: Global["context"];
-  // @ts-ignore
-  var puppeteerConfig: Global["puppeteerConfig"];
-  // @ts-ignore
-  var jestPuppeteer: Global["jestPuppeteer"];
-}
-
 const testTimeoutSymbol = Symbol.for("TEST_TIMEOUT_SYMBOL");
 
 const handlePageError = (error: Error) => {
diff --git a/packages/jest-environment-puppeteer/src/index.ts b/packages/jest-environment-puppeteer/src/index.ts
index fd29313e..08acc06e 100644
--- a/packages/jest-environment-puppeteer/src/index.ts
+++ b/packages/jest-environment-puppeteer/src/index.ts
@@ -1,3 +1,5 @@
+export { PuppeteerEnvironment as TestEnvironment } from "./env";
 export { PuppeteerEnvironment as default } from "./env";
+
 export type { JestPuppeteerGlobal } from "./env";
 export type { JestPuppeteerConfig } from "./config";
diff --git a/packages/jest-puppeteer/src/index.ts b/packages/jest-puppeteer/src/index.ts
index b51b1aa9..70b21a91 100644
--- a/packages/jest-puppeteer/src/index.ts
+++ b/packages/jest-puppeteer/src/index.ts
@@ -1,19 +1,14 @@
 import type { JestPuppeteerGlobal } from "jest-environment-puppeteer";
 
 declare global {
-  // @ts-ignore
   var browser: JestPuppeteerGlobal["browser"];
-  // @ts-ignore
   var page: JestPuppeteerGlobal["page"];
-  // @ts-ignore
   var context: JestPuppeteerGlobal["context"];
-  // @ts-ignore
   var puppeteerConfig: JestPuppeteerGlobal["puppeteerConfig"];
-  // @ts-ignore
   var jestPuppeteer: JestPuppeteerGlobal["jestPuppeteer"];
 }
 
-module.exports = {
+export = {
   globalSetup: require.resolve("jest-environment-puppeteer/setup"),
   globalTeardown: require.resolve("jest-environment-puppeteer/teardown"),
   testEnvironment: require.resolve("jest-environment-puppeteer"),