At the moment, it's seen more like using a proxy or VPN. UK users connect to fuk outside of the UK, then the messages are relayed to zip. Fuk is UK focussed, so tries to work with the OSA. The best analogy is using a UK-focussed email service (wherever it's actually hosted) to email a non-UK address.
That's a reassuring bit of info. If the in-universe explanation is that he isn't the best captain, I might give it another shot. As my initial reaction was "has McFarlane just made himself kirk?"
H.264 had a license fee, but it wasn't ridiculous. It was jacked up for 265, to the point that a lot of software houses no longer bundle the 265 decoder license.
It annoys me too: Security cameras often use turnkey H.265 encoding packages rather than more open codecs, which makes dealing with the files using FOSS more of a pita.
Have you integrated the doorbell with HA yet? Adding mine has been dead useful. Eventually I plan to add some logic so if the door isn't answered within a certain period, the lights in the house start flashing.
Also, I think you're absolutely smack on with your plans for HA, that's how I use it. Get everything talking openly to one platform as a central point. Then link everything together using that platform.
Whichever one best justifies the lifestyle and decisions.