It's currently still experimental. It runs on the same port as the bot and can be enabled with
EnableWebStream = true
SampleInterval = 60
Normally, it's only possible to access it via an API call. But there's a HIGHLY experimental "demo" of it, when you press the
i d d q d
keys in the interface (make sure something is playing). Careful though, it could produce some weird cracking / static noise on Chrome and won't work at all on IE. The stream itself however is fully functional, only the frontend implementation is a bit weird right now.