For insta-sharing of the modified videos / their “indexes”, maybe you could put them on IPFS? Sorry if you already mention this somewhere, I only glanced over the readme as I’m in a hurry.
IPFS is interesting project and I need to finally look into it further. It would be really nice if I managed to run it entirely over IPFS and eliminate the need for a central server. I quite like the idea.
I played with the Go API recently, there was a lot of docs I had to wade through, but the final code was quite nice and short. Just remember to call “pin” and/or “provide”, one of them brought down sharing speed from behind NAT from some horrific 45 minutes to something much more bearable around 2 min. And experimental auto-relay; didn’t minimize to check which ones are the required ones. I know they also have JS lib on the same level of support I think.