@rgarcia and @sjmiller609 have been working on a multi-hypervisor VM runtime to support our work as serverless cloud browser infra. It now runs in our prod services managing >1 million instances per month.

We wrote about our motivations to build it and its architecture here https://www.kernel.sh/blog/hypeman

We'd love any feedback, GH issues, or PRs if you think this work is interesting.