> For the user it means, that he can fearlessly update any of these packages and upon reboot, the system will successfully start. NixOS currently has this! Sin

> For the user it means, that he can fearlessly update any of these packages and upon reboot, the system will successfully start. NixOS currently has this! Since upgrades are atomic, if you have some other version constraint that pushes you towards a kernel version that ZoL doesn't target or support*, your system just doesn't finish building the upgrade and never switches over. If the system upgrades, that means the kernel was built and ZFS was added to your initial ramdisk successfully. In case that succeeds but there are still ZFS issues (which I've never seen or heard of), NixOS will still let you boot the old, working system until you figure out what messed you up in the upgrade. Just select it in GRUB or whatever you're using. Maybe NixOS overall is more DIY than what you're looking for, but the ZFS support feels very first class! I personally recommend giving it a try, if you're up for giving a declarative distro a chance. -- *: I've never heard of this happening except to NVIDIA users, since NVIDIA's proprietary kernel module imposes restrictions on how new of a kernel you can use. On AMD, I've never had a ZFS-related update issue.