Fly.io

Fly.io is a public cloud platform built by Kurt Mackey, Michael Dwan, Jérôme Gravel-Niquet, and Thomas Ptacek, founded in 2017 and refined through Y Combinator's Winter 2020 batch. The platform deploys application servers, databases, and GPU workloads across 30+ regions on hardware-virtualized microVMs called Fly Machines. Headquartered in Chicago and operated remote-first, Fly.io targets the latency gap that traditional CDNs leave open: dynamic application code running close to users instead of just static assets.

Key Capabilities:

• Hardware-virtualized microVMs with millisecond-class boot times

• Docker-based deployment through the flyctl CLI and Machines API

• Global edge deployment across 30+ regions with anycast IP routing

• Managed Postgres with HA clusters, automatic failover, and pgvector support

• LiteFS for distributed SQLite replication across regions

• Tigris S3-compatible global object storage

• Persistent NVMe volumes attached to Machines

• WireGuard private networking and TLS termination via Fly-Proxy

• GPU-accelerated workloads for AI inference and training

• Autostop and autostart for scale-to-zero cost efficiency

• Hardware-isolated security model with end-to-end encryption

• Phoenix.new remote AI runtime for Elixir application scaffolding