Two wolves chase the sun and the moon. They never catch them. They never stop.

In the old Norse stories, Skol runs after the sun and Hati after the moon. The point of the myth isn't the catching. It's that the chase is the shape of a day, and it goes on whether you're ready or not.

That felt like the truth about training for people with a calendar. You don't get the perfect hour. You get a doorstep at dawn before the house wakes up, or a garage at dusk after it's gone quiet. The plan should be built for that hour, not for the one you wish you had.

So the app has two lights. When the sun is up, it's Skol: orange, the morning house. When the sun is down, it's Hati: blue, the evening house. Your session keeps the light it opened in. Nothing about the plan changes; only the room you're in acknowledges the hour.

Skol & Hati is a small team. The engine is a set of deterministic rules with an invariant test for each one. The imagery is generated and says so. The research is published on this site, graded, with the studies named.