Websites and hosting
Fly.io alternatives
1 open-source project that already does this job. Free to use - not free to run, which is what the numbers on the right are for.
The projects
What you give up either way
- Global multi-region edge footprint and low-latency boot/launch guarantees
- Built-in Sprite checkpointing / sleep-wake durable filesystem semantics
- Prebuilt connectors and centralized credential gateway for services
- Commercial SLA and vendor support
An open-source project doing the core job proves a replacement is possible. It does not prove it matches Fly.io, and it does not prove anyone has run it for a month. How we decide.