I'm working on porting moonshot-ui from gnome-keyring to libsecret. It's somewhat involved because upstream needs to support both interfaces--they have a long tail of operating systems they need to work on. Also, the existing code could use some refactoring to be cleaner.
I'm probably 70% of the way through coding this but the results will need to be tested. I anticipate being able to get moonshot-ui back into buster testing (without gnome-keyring) in time to make the freeze.
