Thank you for your work on this! It’s been working great for me.
Couple of small questions:
Are you thinking of bringing any animations to the web app version?
In one of my lists, I have what looks like a “Shared” icon next to the list title. It isn’t present in any of my other lists, including those that I’ve ‘shared’ through text or an image… so I thought it may have something to do with the syncing alpha? (Side note, I’d love to have live shared lists! 
)
Also, as a lover of standalone Mac apps, I recently discovered the little standalone webapps that Safari can add to your dock. This fits my brain a lot better than a pinned tab – just thought I’d mention in case anyone else would like Clear on Mac to look / feel a bit more like a standalone app, rather than a browser tab 