First with IKEA when they changed the lights on-power-up behavior on upgrade. This resulted in a hub becoming a 25 euro cc2531 stick on raspberry pi + Zigbee2mqtt and HomeBridge for integration with HomeKit.
And the past February Apple decided my Apple TV 3 was not good enough for being a home hub, and botched the entire home in the process, while I was away.
So now the whole HomeKit nonsense is out and instead there is a lightweight Rust app with a simple text file config doing both the orchestration and providing the light html UI.
https://github.com/ayourtch/homegui - in case anybody finds it useful.
As a bonus the users in the household praise the new system being much more responsive..
I am missing “turn all the lights off when last person leaves”, and full editing the colors via GUI, but not enough to bother to implement it :-)