On: Edge functions: Node and native NPM compatibility

[kiwicopple]

> I'm pretty sure Supabase is using Deno Deploy/Subhosting.

We self-host the Edge Runtime now:

https://github.com/supabase/edge-runtime

[sorenbs → kiwicopple]

How are you handling the security boundary between tenants? Is each edge function run in a separate Deno process in a VM?

[laktek → sorenbs]

We have a cluster of Edge Runtime instances in each region. We run multiple edge functions within an instance using v8 isolates (Deno's core runtime is a wrapper around v8 isolates). This setup provides a good balance between cost and security. Other edge hosting providers like Cloudflare also follow a similar setup.