Last Sunday I had the idea to expand my gameplay btrfs. Now what was missing was a yum plugin which worked like arch or opensuse. Ok, I told myself and learned a little python. Also something for grub2 to boot into a snapshot. My results are up on:
grub2-btrfs (do not use grub-btrfs, this is the version before)
The grub2 plugin is tuned to snapper and is therefore in conflict with yum-plugin-fs-snapshot (from archlinux).