The comment section doing what it does best!

For brevity I chose to put up only the conclusion from a postmortem (of which I've read plenty by now) and another point from their otherwise comparatively shorter careers page, which imo capture the inherent tension between building out fast & building out right. This is not something I've started complaining about today or yesterday. I've used Fly in prod for 4 years and spilled much ink on this topic on their forums already. Even if I critique, I remain optimistic about Fly despite the seemingly endless list of failure modes building such complex systems entail: https://community.fly.io/t/fly-down/10224/15

(personally speaking, I'm humble enough because I can hardly build a toy side-project right!)