I use Roam, and I've had my eye on your project for many months now, so I'm super excited to see you come so far. I'm also passionate about privacy and having control over my data - IIRC the way Roam handles image uploads is by uploading the image to firebase and giving you a link that anyone can use to view your image, with no way to delete that image, so you just have to trust in the 'unlisted' nature of the link. Not a big fan of this.

One thing I think was missing when I last looked at Athens was a working high-fidelity import of a Roam EDN export - without this I can't see an easy way to migrate, and I'm guessing there are other Roam users in the same boat? I'm sure it'll come along, until then I'll sit tight in anticipation :)