I actually didn't try ESPHome yet, thx for mentioning it. That will be my next experiment then. The adaptive lighting also sounds really cool, will try that as well.
Do you know if the Athom bulbs even have some kind of persistent memory that can survive longer timeframes without power?
There's only two kinds of memory in an Athom bulb: The RAM that is built into the ESP MCU (temporary, fast -- like RAM in a PC), and the flash ROM (permanent, much slower -- like an SSD in a PC).
Data in RAM doesn't survive for even a moment without power. Data in flash should be good for years and years with or without power.
Do you know if the Athom bulbs even have some kind of persistent memory that can survive longer timeframes without power?