[cpuguy83]

qemu has a microvm machine profile, also boots in ms.

There are also tooling on Linux to do containers as microvm's, long before Apple containers were a thing.

[paxys]

And yet Amazon spent a ton of time and money writing Firecracker from scratch for their workloads. Why is that?

[cpuguy83]

Multiple reasons:

1. Firecracker is still a smaller more deliberate surface area 2. qemu didn't have a microvm type at the time. Firecracker was the impetus for it