Aaah, I only use these systems through their native websites, not through any apps, even on mobile devices, so I figured that's what @teledyn meant by apps originally.
In other words, my reader IS my server software, and yes, that's where I suspect the holdup is.
But that's in contrast to the holdup being in the language that the servers/instances/apps use to speak to each other.
That the language seems capable of it means it's less of a hurdle to have the other links in the chain implement it.