diff --git a/README.md b/README.md
index 71194684d..57967b28c 100644
--- a/README.md
+++ b/README.md
@@ -3,12 +3,12 @@
 
 ## Requirements
 
-- Xcode 12.4+
+- Xcode 12.5+
 - Swift 5.3+
 - iOS 14.0+
 
 ## Setup
-We needs the latest version Xcode from App Store. And install Cocoapods for dependency management.
+We needs the latest version Xcode from App Store. And use Cocoapods for dependency management.
 
 ### CocoaPods
 
@@ -16,7 +16,8 @@ We needs the latest version Xcode from App Store. And install Cocoapods for depe
 
 ```zsh
 # install cocoapods from Homebrew
-brew install cocoapods
+sudo gem install cocoapods
+sudo gem install cocoapods-keys
 pod install
 ```
 
@@ -24,7 +25,8 @@ pod install
 
 ```zsh
 # install cocoapods from Homebrew
-brew install cocoapods
+sudo gem install cocoapods
+sudo gem install cocoapods-keys
 
 # pod install may not works on M1 Mac. Fix by install ffi
 # ref: https://github.com/CocoaPods/CocoaPods/issues/10220
@@ -40,22 +42,43 @@ arch -x86_64 pod install
 2. Check the signing settings make sure choose a team. [More info…](https://help.apple.com/xcode/mac/current/#/dev23aab79b4)
 3. Select `Mastodon` scheme and run it.
 
+#### Contributors
+The app require the `App Group` capability. To make sure it works for your developer membership. Please check [AppName.swift](AppShared/AppName.swift) file and set another unique `groupID` and update `App Group` settings.
+
+The compatible with [toot-relay](https://github.com/DagAgren/toot-relay) APNs. You can set your push notification endpoint via cocoapod-keys.
+
 
 ## Acknowledgements
 
-- [ActiveLabel](https://github.com/TwidereProject/ActiveLabel.swift)
 - [AlamofireImage](https://github.com/Alamofire/AlamofireImage)
 - [AlamofireNetworkActivityIndicator](https://github.com/Alamofire/AlamofireNetworkActivityIndicator)
 - [Alamofire](https://github.com/Alamofire/Alamofire)
 - [CommonOSLog](https://github.com/mainasuk/CommonOSLog)
 - [CryptoSwift](https://github.com/krzyzanowskim/CryptoSwift)
 - [DateToolSwift](https://github.com/MatthewYork/DateTools)
+- [DiffableDataSources](https://github.com/ra1028/DiffableDataSources)
+- [DifferenceKit](https://github.com/ra1028/DifferenceKit)
+- [FLAnimatedImage](https://github.com/Flipboard/FLAnimatedImage)
+- [FLEX](https://github.com/FLEXTool/FLEX)
+- [FPSIndicator](https://github.com/MainasuK/FPSIndicator)
+- [Fuzi](https://github.com/cezheng/Fuzi)
 - [Kanna](https://github.com/tid-kijyun/Kanna)
 - [KeychainAccess](https://github.com/kishikawakatsumi/KeychainAccess.git)
 - [Kingfisher](https://github.com/onevcat/Kingfisher)
+- [MetaTextKit](https://github.com/TwidereProject/MetaTextKit)
+- [Nuke-FLAnimatedImage-Plugin](https://github.com/kean/Nuke-FLAnimatedImage-Plugin)
+- [Nuke](https://github.com/kean/Nuke)
+- [Pageboy](https://github.com/uias/Pageboy#the-basics)
+- [SDWebImage](https://github.com/SDWebImage/SDWebImage)
+- [swift-nio](https://github.com/apple/swift-nio)
 - [SwiftGen](https://github.com/SwiftGen/SwiftGen)
+- [SwiftUI-Introspect](https://github.com/siteline/SwiftUI-Introspect)
 - [SwiftyJSON](https://github.com/SwiftyJSON/SwiftyJSON)
-- [TwitterTextEditor](https://github.com/twitter/TwitterTextEditor)
+- [SwiftyJSON](https://github.com/SwiftyJSON/SwiftyJSON)
+- [Tabman](https://github.com/uias/Tabman)
+- [Texture](https://github.com/TextureGroup/Texture)
+- [ThirdPartyMailer](https://github.com/vtourraine/ThirdPartyMailer)
+- [TOCropViewController](https://github.com/TimOliver/TOCropViewController)
 - [TwitterProfile](https://github.com/OfTheWolf/TwitterProfile)
 - [UITextView-Placeholder](https://github.com/devxoul/UITextView-Placeholder)