I've put together a tutorial on how to get ZFS for Linux running on Solus. This does not tell you how to boot Solus on ZFS but is rather for using additional drives/partitions. Using ZFS is well documented online so that is also absent.
ZFS solves particular issues but is not for every use case. Search for 'zfs features' for more info.
It would be nice to know if you find this information useful and how many people are interested in ZFS on Solus.