Hi! I don't know if we'll have anything super official, but the code is obviously all open source, and the backup file is just a stream of protobufs[1], so it shouldn't be too bad to make a tool. I know have some rough CLI tools sitting around -- I'll see if there's anything we want to clean up and release publicly when the local backup portion of this launches.

Also, as someone else noted, the format is indeed incremental. So while we'll still do the thing where we keep the last two backups on disk, because those two backups will share almost all the same media files, the size on disk will be much much smaller. As someone with a 50 GB backup file, this was very much a goal for me :)

[1] https://github.com/signalapp/Signal-Android/blob/main/app/sr...

> I'll see if there's anything we want to clean up and release publicly when the local backup portion of this launches.

That would be fantastic! Thanks so much!

> As someone with a 50 GB backup file, this was very much a goal for me :)

Haha, I'm glad I'm not the only one!