throwaway58235

It also has the side effect of making the user experience on competing browsers significantly worse.

Darn... I'm working on almost exactly the same project. The big challenge is getting access to server hardware that is actually meant for webbrowsing. Not only are AWS et al expensive, they primarily offer "webservers" which are optimized for very light not very CPU intensive workloads and needless to say they also don't offer hardware accelerated video decoding.