TLDR >To be fair, we thought it was pretty easy after our first year making f.lux (Night Shift today looks a whole lot like our first version). We figured we'd

TLDR >To be fair, we thought it was pretty easy after our first year making f.lux (Night Shift today looks a whole lot like our first version). We figured we'd solved the blue light problem and that there just wasn't much left to do. We couldn't have been more wrong. Every person has individual needs, and those needs are different based on your sensitivity to light, your own chronobiology (imagine early birds and night owls), your own schedule, and other factors too. Those needs change across seasons, and over your lifetime. Today our approach is different: we are working every day to understand how light affects human biology, not strictly sleep, and we are constantly applying what we learn to updates and new features for f.lux.