This is great. Nice work! I built something really similar about 3 years ago, a few months before my 4th child was born. Then I lost interest lol. Super barebones POC https://justwatchwith.me/ The idea was that you could stream videos directly from your machine and watch in sync with remote friends and family, controlling the playback with a pause button. I didn't maintain it for a while after I built the POC because not many of my friends / family were very interested at the time. If I only had more time to improve it..... they probably would've appreciated it more under current circumstances if I continued to work on it lol