hm, last time my snapshots folder was nested, I had to create a different grub-btrfs.path, to instead of monitoring the folder, to execute at the first minute each hour, but I don’t know how that would work with snap-pac…
There was other script in a thread here, let me search
Edit: https://forum.endeavouros.com/t/first-experiment-with-installing-on-btrfs/8145/134