Nice work! As someone who's about to try their hand at their first Safari extension (and first web extension period, something in the spirit of Tabs Outliner), do you have any tips or tricks you could share?
I read a lot online and of course LLMs can probably help you there. I would suggest if it's nothing macOS/safari specific you want to build, start using chrome and develop the extension for it first. If you want to add safari to the list of supported browser later, you can easily adapt the code (as long as safari supports the apis for it).