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Comment by vnglst | Hacker News Reader

Nice, I like how short and simple it is. The title seems to imply it runs on multiple datacenters. How does it sync messages between those?

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I was also wondering how this worked, and the following Deno Deploy documentation explains it: https://deno.com/deploy/docs/runtime-broadcast-channel/#broa...

I believe the BroadcastChannel implements the server-side distributed messaging.

Neat, it’s a server-side implementation of the browser API for tab-to-tab communication.

https://deno.com/deploy/docs/runtime-broadcast-channel/

    class BroadcastChannel
      return `system('ircd')`
    end

Only three lines! :D

Right, as jitl suggested. The BroadcastChannel is used to allow cross-datacenter messaging. So every script instance has its own set of clients and forwards incoming client messages to other script/datacenter instances.

I suppose this is not limited to multiple datacenters, but to multiple script instances in one datacenter as well.

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