Nicolas Lubitz, a PhD candidate who studies marine predators, said he could only assume the shark gobbled up the echidna while it was swimming in the shallows off the island, or travelling between islands, which the animals are known to do.
TIL echidnas can swim
I think this is the use case for Kodi, if you have local media. If you also want multiple device sync without hassle, then Plex, but this is an online account. I hear good things about Jellyfin, which is a FOSS alternative to Plex.