Go to bed! Fade out computer screen from 22:00 to 23:00. Hammerspoon

init.lua

function brightnessDown ()
  lct = hs.timer.localTime()
  tt = 60*60*22 -- 22:00
  if lct > tt then
    wish = 100-math.ceil((lct % tt) / (60*60) * 100) -- time after
    if hs.brightness.get() > wish then
      hs.brightness.set(wish)
    end
  end
end

-- run every minute
brtimer = hs.timer.doEvery(60, brightnessDown)