Top 3 zfs-filesystem open source projects

Policy-driven snapshot management and replication tools. Using ZFS for underlying next-gen storage. (Btrfs support plans are shelved unless and until btrfs becomes reliable.) Primarily intended for Linux, but BSD use is supported and reasonably frequently tested.

Build-in zfs Archlinux Live ISO

ZFS Bootloader for root-on-ZFS systems with support for snapshots and native full disk encryption