I just wanted to let you all know that my service ExtensionPay (/extensionpay.com) now supports Manifest v3 as well as Manifest v2.
For context, ExtensionPay is a service that lets browser extension creators easily take payments for their extensions without needing to write or run their own backend payment system. It’s open source, free to start, and works in every browser. It also gives you a nice user login system for users that uninstall/reinstall or want to install your extension in different browsers or devices.
Please check it out, sign up, give it a star on Github, and enjoy!