Spyke was an in-browser video chat application using using WebRTC, PeerJS, Express, Socket.io and NodeJs on Heroku. I got about 70% of the way into this project and then found a handful of companies doing the same thing but better. This was an attempt at being able to do a peer-to-peer in-browser video chat that bypassed the major corporations (Microsoft and Google).
The requirements are deprecated so here is a link to the Github.