Excited to share this project I wrote! This would be the perfect way to watch a movie with someone else over a long distance. Every time you pause it stops the server sending out the latest frame.
This is fundamentally different than something like Watch2Gether where you are downloading an already existing file from a CDN. In that case you are just depending on the client side to keep things in sync, with rtwatch there is no way for users to buffer or skip ahead in the video!