I vaguely remember that fly.io used to have a platform based on v8 isolates, I’m guessing the new platform is a bit of a pivot? I’m curious, was it just to support more platforms, or we’re there technical challenges with isolates?
It's a bit of a pivot but still in the same space. Here's a few reasons why we landed on this:
- Our JS apps require customers to write new code to solve problems. That’s a tough sell for companies with existing code they need to make fast.
- The more people used JS apps the more unexpected things they wanted to do. Like tensorflow at the edge, audio and video encoding, game servers, etc. No way we could support any of that without moving down the stack.
- Reimplementing the service worker api was a slog we didn’t want to continue. Deno is fantastic and we’d rather just run those apps than compete with it
