alt Hacker NewsIt's not as battle-tested like ZFS with 15+ years of field usage, but it's good enough for me and other users.
There's a NAS appliance called NASty and it shares publicly usage stats: https://nasty-telemetry.pages.dev/ Those numbers are NASty alone. There are more users on other systems.
15+ years of ZFS code is also often said as being a nearly unmanageable pile of mess, supposedly to the point that there’s some of the code that maintainers are afraid of touching, and with plenty of unresolved weird bugs (which I experienced myself with data loss).
Sometimes starting fresh with one coherent codebase and all features design baked in from the start might be better.