The author choose to use redshift, probably for a good reason, I expect it has much nicer system integration hooks for one. However an interesting article into

The author choose to use redshift, probably for a good reason, I expect it has much nicer system integration hooks for one. However an interesting article into the mechanism of shifting desktop color is found here. https://flak.tedunangst.com/post/sct-set-color-temperature https://flak.tedunangst.com/post/sct-set-color-temperature