moved my postgres data dir to a zfs dataset with recordsize=16k for this instance
for reference, the volblocksize for the akko.wtf vm is also 16k
me tests backup script
wonders why it doesn't work
thinks it's selinux shenanigans once again
turns out the script just didn't have correct permissions set
norm@othinus:~$ df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/fedora-root 74G 54G 20G 74% /