TBH, I ditched homekit in favour of Amazon Alexa. It works with *everything* in my house, my hive, lightwave, harmony - with no faffing around whatsoever. Next step is to see if I can get it working in my car (doesn't have CarPlay) - but Alexa would be great with a mobile wifi hotspot (which would also be useful for my cars traffic thing so I don't need to faff with personal hotspot), would be useful for things like opening the gate, controlling Spotify, etc.
Shame really, as homekit could've been great - but the whole approval process has made it really lag behind the competition.