There is also a nice post about this in our forum: HomeKit holy grail: homebridge-openhab2-complete
I switched two months ago to homebridge + homebridge-openhab2-complete plugin for homekit stuff and I’m quite happy with it - it’s much more reliable than my experiences with the openHAB homkit binding.
To avoid misunderstandings - openHAB ist still the center of my Smart Home setup - homebridge + homebridge-openhab2-complete is only used to expose my openHAB items to homekit.