Ok → So I woke up early (go figure). I power cycled my fireplace (since I haven’t used it in months).
Booted up HA → it detected the fireplace (woohoo). I configure it and everything is working fine for me - currently.
Regarding Local vs HACS integration. My current plan is to build in both the option to use CLOUD or LOCAL control on the HA Core integration. The App uses Cloud based control - where as there is a local API I’m currently using.
One strange issue I’ve run into over the years is that sometimes the local API barfs and if you switch to cloud everything works better. The HACS integration should support switching between the two modes.
Keep me updated please because as fares I can tell all is good right now