diff --git a/README.md b/README.md
index e73aeb1..61f6212 100644
--- a/README.md
+++ b/README.md
@@ -1,13 +1,19 @@
-# ADM-ZIP for NodeJS with added support for electron original-fs
+# ADM-ZIP for NodeJS
 
 ADM-ZIP is a pure JavaScript implementation for zip data compression for [NodeJS](https://nodejs.org/).
 
+<a href="https://github.com/cthackers/adm-zip/actions/workflows/ci.yml">
+  <img src="https://github.com/cthackers/adm-zip/actions/workflows/ci.yml/badge.svg" alt="Build Status">
+</a>
+
 # Installation
 
 With [npm](https://www.npmjs.com/) do:
 
     $ npm install adm-zip
 
+**Electron** file system support described below.
+
 ## What is it good for?
 
 The library allows you to:
@@ -63,4 +69,19 @@ zip.writeZip(/*target file name*/ "/home/me/files.zip");
 
 For more detailed information please check out the [wiki](https://github.com/cthackers/adm-zip/wiki).
 
-[![Build Status](https://travis-ci.org/cthackers/adm-zip.svg?branch=master)](https://travis-ci.org/cthackers/adm-zip)
+## Electron original-fs
+
+ADM-ZIP has supported electron **original-fs** for years without any user interractions but it causes problem with bundlers like rollup etc. For continuing support **original-fs** or any other custom file system module. There is possible specify your module by **fs** option in ADM-ZIP constructor.
+
+Example:
+
+```javascript
+const AdmZip = require("adm-zip");
+const OriginalFs = require("original-fs");
+
+// reading archives
+const zip = new AdmZip("./my_file.zip", { fs: OriginalFs });
+.
+.
+.
+```
diff --git a/util/fattr.js b/util/fattr.js
index 163e2e5..720b827 100644
--- a/util/fattr.js
+++ b/util/fattr.js
@@ -1,9 +1,6 @@
-const fs = require("./fileSystem").require();
 const pth = require("path");
 
-fs.existsSync = fs.existsSync || pth.existsSync;
-
-module.exports = function (/*String*/ path) {
+module.exports = function (/*String*/ path, /*Utils object*/ { fs }) {
     var _path = path || "",
         _obj = newAttr(),
         _stat = null;
diff --git a/util/fileSystem.js b/util/fileSystem.js
deleted file mode 100644
index dee5c2a..0000000
--- a/util/fileSystem.js
+++ /dev/null
@@ -1,11 +0,0 @@
-exports.require = function () {
-    if (typeof process === "object" && process.versions && process.versions["electron"]) {
-        try {
-            const originalFs = require("original-fs");
-            if (Object.keys(originalFs).length > 0) {
-                return originalFs;
-            }
-        } catch (e) {}
-    }
-    return require("fs");
-};
diff --git a/util/utils.js b/util/utils.js
index 784ae0a..cd09692 100644
--- a/util/utils.js
+++ b/util/utils.js
@@ -1,4 +1,4 @@
-const fsystem = require("./fileSystem").require();
+const fsystem = require("fs");
 const pth = require("path");
 const Constants = require("./constants");
 const Errors = require("./errors");