Adding the SDK and Rich Push Extensions

With your Xcode Project open, Select Your Project → Package Dependencies → + button
Enter Package URL: https://github.com/GoCarrot/teak-ios-framework

Make sure Dependency Rule is set to Up to Next Major Version
Add the Teak and TeakExtension libraries to your Application Target and click Add Package
Click the + button to add a new target.
Select Notification Service Extension then Next
Enter the product name as TeakNotificationService and click Finish

Do not active the scheme on the dialog that is shown after clicking Finish.

Press Don’t Activate on the Activate scheme prompt.

Open the NotificationService file and replace its contents with

Notification Service

import TeakExtension

class NotificationService: TeakNotificationServiceCore {
    override func serviceExtensionTimeWillExpire() {
        super.serviceExtensionTimeWillExpire()
    }
}

Select the TeakNotificationService target → Build Phases → Link Binary With Libraries → +
Select Teak Extension and click Add
Click the + button to add a new target.
Select Notification Content Extension then Next
Enter the product name as TeakContentExtension and click Finish

Do not active the scheme on the dialog that is shown after clicking Finish.

Press Don’t Activate on the Activate scheme prompt.

Open the NotificationViewController file and replace its contents with

Notification View Controller

import TeakExtension

class NotificationViewController: TeakNotificationViewControllerCore {
    override func viewDidLoad() {
        super.viewDidLoad()
    }
}

Open the Info file with an External Editor

Replace its contents with

Content Extension Info.plist

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
    <key>NSExtension</key>
    <dict>
        <key>NSExtensionAttributes</key>
        <dict>
            <key>UNNotificationExtensionCategory</key>
            <array>
                <string>TeakNotificationContent</string>
                <string>TeakNotificationPlayNow</string>
                <string>TeakNotificationClaimForFree</string>
                <string>TeakNotificationBox123</string>
                <string>TeakNotificationGetNow</string>
                <string>TeakNotificationBuyNow</string>
                <string>TeakNotificationInteractiveStop</string>
                <string>TeakNotificationLaughingEmoji</string>
                <string>TeakNotificationThumbsUpEmoji</string>
                <string>TeakNotificationPartyEmoji</string>
                <string>TeakNotificationSlotEmoji</string>
                <string>TeakNotification123</string>
                <string>TeakNotificationFreeGiftEmoji</string>
                <string>TeakNotificationYes</string>
                <string>TeakNotificationYesNo</string>
                <string>TeakNotificationAccept</string>
                <string>TeakNotificationOkay</string>
                <string>TeakNotificationYesPlease</string>
                <string>TeakNotificationClaimFreeBonus</string>
            </array>
            <key>UNNotificationExtensionDefaultContentHidden</key>
            <false/>
            <key>UNNotificationExtensionInitialContentSizeRatio</key>
            <real>0.01</real>
            <key>UNNotificationExtensionUserInteractionEnabled</key>
            <true/>
        </dict>
        <key>NSExtensionPointIdentifier</key>
        <string>com.apple.usernotifications.content-extension</string>
        <key>NSExtensionPrincipalClass</key>
        <string>$(PRODUCT_MODULE_NAME).NotificationViewController</string>
    </dict>
</dict>
</plist>

Select the TeakContentExtension target → Build Phases → Link Binary With Libraries → +
Select Teak Extension and click Add