i guess the issue is not that you can't use yaml but instead that a lot of things are removed from the actual config.yaml file. inuser tonhave all integrations set up in that file, after every update i get a notification, that this is deprecated for that integration and that i should remove it and use the gui setup instead. i have my config in git which saved me from needing backups, because all was already configured and could be redeployed at any time to another machine. now that is not possible anymore.