It's not a managed database, if things break at 3am, you have to fix it yourself. The buildpacks are an afterthought using third-parties. A real evergreen solution will track the official Heroku solution (since fly.io doesn't even bother to document their buildpacks) to the nearest day. The whole point of the P in PaaS is that somebody else does the DevOps. If I have to do so much DevOps, then there's no point in adopting Fly. I am getting the impression that users here only care about their shiny blogposts and content marketing, versus the actual experience as a business user.