You cannot replicate the full filesystem among multiple hosts with their own drives though, can you?
With OSTree my team can deploy a commit over an existing ones to a field of 60k embedded Linux devices. Similarly bootc is a great alternative for deploying images for dedicated or virtualized servers.
How do you tag / mark a commit a snapahot of all files in an OS image that's independent from each device's local state and then move them from one commit to another atomically? Basically a `git pull` on a branch but binary and atomic.
CoW is strictly local. You can make a snapshot of local state sure and even atomically change it. But that's not we want.
With OSTree my team can deploy a commit over an existing ones to a field of 60k embedded Linux devices. Similarly bootc is a great alternative for deploying images for dedicated or virtualized servers.