Wow–this is an insane find. If only we could figure out what the hash or salt was for any of these.
I’ve recently stumbled back into this as I’m getting a whole home HVAC system (Aprilaire IAQ) with a special stat (8840 thermostat) that works with literally every automation provider under the sun (including Alexa and Google assistant) but not HomeKit. To get around this I’m going to try and use Assistant Relay to tie into Home Assistant and then bridge into HomeKit. Will be interesting to see how it works.
Will try and do the same thing with this Blu-ray player as it works with Google Assistant.