This makes me sad. It was relatively easy to maintain a cross-browser extension that supported Chrome, Firefox, Opera and Safari. All browsers roughly supported

This makes me sad. It was relatively easy to maintain a cross-browser extension that supported Chrome, Firefox, Opera and Safari. All browsers roughly supported the same WebExtension like format and I could use the same code with relatively few browser specific paths. I don't understand the move towards requiring xcode instead of going full WebExtension support. I'm scared that I will be unable to support Safari users without a macbook in the future.