If you have reasonably broadband controllable RGBW LEDs it basically becomes a software problem. Ofc the more broadband options you have the better it would be, in terms of simulating natural light cycles.

Been planning on testing it for a while, haven’t got around to it yet. I’d be stunned if it didn’t have a pretty positive effect overall.

Also really wouldn’t be surprised if there are some options or tools for doing it in a crude way with various consumer “smart globes” already…

edit: ok seems they do, from there i guess it depends how deep you want to go into it, re. reproducing actual wavelengths vs tricking the eye (and therefore hopefully the brain/body)

Andrew Huberman’s YT channel may have one or two videos you might like. He is a scientist who specializes in eye-brain connections. His shows are longgggg, but excellent. He says use dim red light below waist level after dark. Some nightlights have different wattages as do some nightlight bulbs - but I have found this the easiest and cheapest way of accomplishing what he recommends. The nightlight needs to have a manual on and off switch preferably and I think 4 watts (i have) is too dim, so 7 watts may be better. You can get the red light bulbs somewhat cheaply in large Asian stores in the Buddhist section. Most single red bulbs will be between 50 cents and a $1.30. I think I saw different wattages on them, hence the different prices. There are apps for phone and PC and maybe browser extensions to adjust light levels and maybe types of light.

I remember seeing some Philips bulbs that you could configure it’s tone with their application, sad thing is closed source and shit but maybe once you change it you don’t need to touch it anymore, unless you want it to change its colour throughout the day.