I started Bonsai, which helps managing deployments in Fedora Silverblue.

You can already do the following:

• View your deployments details
• Pin and unpin deployments
• Set a deployment to be booted next
• Delete a deployment
• Rebase to an other branch
• Add new remote branches
• See pending changes

There is still plenty to do, but if you want to try it out, you can download a compiled binary from the releases.

Feedback is always welcome.