Oh. It's like Firecracker, only much faster 8-)

What I like most is the ability to instantly reset the state of the VM to a known predefined state. It's like restarting the VM without any actual restart. It looks like an ideal course of action for network-facing services that are constantly under attack: even if an attack succeeds, the result is erased on the next request.

Easy COW page sharing for programs that are not written with that in mind, like ML model runners, is also pretty nice.