Turbo is a new way to build greate web frontends fully powered by html markup and without any JavaScript. That Turbo is what powers Basecamps new mail service HeyHey.

At the heart of Turbo are Streams which provides realtime updates over HTTP or WebSocket.

With Turbo Streams you just sent dom updates over the wire as plain html. Like so:

<turbo-stream action="append" target="dom_id">
  <template>
    Content to append to container designated with the dom_id.
  </template>
</turbo-stream>

Then the html sent over in the template element is appended to the dom element with id dom_id. Just so simple. Of course you can also replace or remove html from the dom the same way by using the actions repace and remove.

For all you Gophers out there keen on using it, I've got you covered! Here's a simple example for using Turbos Streams in Go
with the Gorilla WebSocket toolkit.

$ go run *.go

<script src="https://cdn.jsdelivr.net/npm/@hotwired/turbo@8.0.4/dist/turbo.es2017-umd.min.js" ></script>
<script>
Turbo.connectStreamSource(new WebSocket("ws://" + document.location.host + "/ws"));
</script>