So many sandbox products these days though. What are people using in production and what should one know about this space? There's Modal, Daytona, Fly, Cloudflare, Deno, etc
Many a time I have tried to figure a self scaling EC2 based CI system but could never get everything scaled and warm in less than 45 seconds, which is sucky when you’re waiting on a job to launch. These microvm as a service thingys do solve a problem.
(You could use lambda, but that’s limited in other ways).