https://openzfs.github.io/openzfs-docs/Developer Resources/Building ZFS.html
[ 424.596656] zfs: module license taints kernel.
[ 425.491531] ZFS: Loaded module v2.2.99-311_gd9cb42da9, ZFS pool version 5000, ZFS filesystem version 5
tested on OPi5 with kernel 6.7.1
Getting it working on legacy 5.10.y rk Android-hackedtogether kernel is a bot tougher.
https://github.com/radxa/kernel/issues/54
Spoiler: patching method does not work anymore, at least not for me . Tested with 5.10.160...