Also means that a robust community of people creating businesses to sell variations of the hardware for those who aren’t as maker friendly cannot emerge, correct?
Bc imo that’s what really got early 3d printing off the ground. Like back in 2010 during the reprap days there were all the independent maker storefronts plus a few bigger ones like lulzbot and makerbot (that eventually all got put out of business or bought for toxic modern shit like bambulab because in the modern day under capitalism every single industry has to consolidate until it’s under a few large extremely consumer hostile companies with okay products that just eventually get worse and worse bc there’s no competition or regulation for them but I digress).
Without this industry or a proper open source platform I don’t see how this will succeed
“Anything else anywhere else”
Clarify - do you mean remote access? Are you using your phone for local access (eg localhost:8096 or 192.168.0.1:8096 or some kind of mDNS like arch.local:8096)? None of that will work outside of your home without additional configuration nor should you just openly expose it to the greater internet without doing much more research. Short version though - easy mode: tailscale or wireguard, harder version headscale but can be fully self hosted.
If this isn’t a remote access issue and it’s just some devices aren’t working locally (eg your phone and browser can connect but tv can’t) I would bet it’s a networking issue with firewall/router. What do logs say? This is one that can be trickier because logs on jellyfin side won’t necessarily have any useful info (they might if client is trying and failing to connect, worth a look) and logs on the other side might be a nightmare or even impossible to access (eg a smart tv and you don’t have a developer account for apple/android/webos)