Hi Markus,
we are happy to add new packages and make openmamba more complete. I didn’t know about Latte-Dock and have made a new package for it. It will be available in the main rolling repository in a few hours, but if you run x86_64 openmamba you can install and try it just now with the following console command:
sudo dnf install latte-dock --enablerepo=unstable-makedist