Fly.io
Deploy app servers close to your users globally
Fly.io runs your app servers in data centers around the world, close to your users. Supports any Docker container, persistent storage, and GPU workloads. Popular for deploying full-stack apps and AI inference.
Panel Reviews
The Builder
Developer Perspective
“For apps that need full server control — WebSocket servers, background workers, AI inference — Fly.io gives you the flexibility that serverless platforms don't.”
The Skeptic
Reality Check
“The DX has improved massively but it's still more complex than Vercel. You need to understand Docker and infrastructure. Not for beginners.”
The Futurist
Big Picture
“Fly.io is the answer for workloads that don't fit the serverless model. As AI inference goes local-first, having servers in 30+ regions matters.”
Community Sentiment
“Fly Machines are legitimately one of the best primitives in infra right now — fast cold starts and global routing”
“Moved a Node API from Heroku — cheaper, faster deploys, and the Postgres with replicas is solid”
“Docs are excellent and the team responds in the community forum — rare for an infra company”
“GPU support for AI inference workloads at sensible pricing is why I switched from AWS Lambda”