I agree. I prototyped integrating AWS Lambda into our CI pipeline last year, and was very impressed. Unfortunately, I hit a wall when it came to limiting concur

I agree. I prototyped integrating AWS Lambda into our CI pipeline last year, and was very impressed. Unfortunately, I hit a wall when it came to limiting concurrent executing lambdas (which isn't firecracker's fault),but it was very promising up to then. I'm also curious about using fly.io's machines API [0] for the same thing. [0] https://fly.io/docs/machines/ https://fly.io/docs/machines/