Fly.io

Fly.io runs your applications close to your users with a global network of servers. Built on Firecracker VMs, it offers container-like simplicity with VM-level isolation.

Key Features:

• Global Distribution - Deploy to 30+ regions from a single command
• Anycast Networking - Traffic routes to the nearest healthy instance
• Persistent Storage - Volumes that survive restarts and deployments
• Built-in Postgres - Managed database with automatic failover

Why Fly is different:

• Real VMs - Full Linux environments, not restricted containers
• Multi-region by Default - Global deployment is the expected pattern
• GPUs Available - Machine learning workloads supported
• Custom Domains - Automatic SSL and DNS management

Fly.io is compelling when latency matters. The ability to run your application in multiple regions simultaneously, with automatic routing to the closest instance, delivers performance that single-region deployments can't match. It's become the default for latency-sensitive applications.