NanoVMs

Firecracker is a complementary technology and not competitive.

Our main software - https://nanos.org is a linux kernel guest replacement whereas firecracker is a VMM (host) replacement for something like qemu.

So the vast majority of our users deploy to AWS, GCP, etc. and those deploys are created as ec2 instances (but without linux). Some of our users/customers use firecracker for ephemeral workloads.