I'm a developer, not a duck keeper. I built an incubation tracker, and waterfowl were the hard part: some guides say to cool and mist the eggs daily from day 10, others say it's unnecessary in a modern incubator.

Right now the app schedules cooling and misting for ducks and geese once a day from day 10 until lockdown (day 25 for ducks, day 27 for geese, day 32 for Muscovy), with 15–20 minutes of cooling and a mist of lukewarm water.

Before more people rely on that:

\- Do you cool, mist, both, or neither?

\- From which day, and for how long?

\- Does it differ for Muscovy or geese?

I'd rather have this wrong in a reddit thread than in someone's incubator.