Doesn't deleting old kernels defeat snapshots? You do a system update, you get a new kernel, you delete the old ones, now all snapshots that depend on that older kernel are busted, what am I missing?
You may have misread, what I do is I keep the 5 latest versions of the kernel the distro ships and I delete snapshots which depend on kernels older than those 5. I could keep all the kernels and snapshots, but I don't have that much storage dedicated to / and /boot.