Circadian lighting with Home Assistant: Like f.lux, but for your house
I started a company to pursue circadian lighting (called Twist) and sadly pivoted away from it as a core value proposition because of weak reception from the market.I feel we were 20 years too early (we shut down about 5 years ago).Our tech enabled smart circadian lighting (we called it adaptive lighting) without configuration, an app, or wifi. The lightbulbs worked without any smart gadgetry necessary.Every time the switch turned on the light made a 20 ms computation based on the time it stored (via a low power clock and a super cap) and turned to the right brightness and color temperature automatically. This was protected by a patent but also could not find a buyer for the tech despite how differentiated it wasNow I have an entire home with hue downlights + bulbs that does circadian lighting (with HASS as well) and while its not nearly as elegant of a solution as Twist (aforementioned startup), it is pretty great and a huge life changer to me and my fiancè.Edit: for context we use Philips Hue downlight retrofits + bulbs in other fixtures, all white ambiance, and Lutron Aurora  dimmers, connected to HASS on a RBPI, running adaptive lighting from HACS