Comment by nikisweeting
7 hours ago
there are tricks to avoid needing distro support / kernel modules for ZFS: https://github.com/pirate/zfsbox
also tricks to make it easy to convert a root FS to ZFS now that Ubuntu Server 24.04 added native root-on-zfs support: https://github.com/pirate/zfsify
I hadn't heard of zfsify, but I think I'll check it out on yet another old laptop running ext4.