The library

Principles you can use this week.

Every principle here was earned inside a running business simulation: a decision, a consequence, a lesson that stuck. The story, the numbers, and the honest exceptions.

The First 90 Days · 5 min

File your permits before you build anything

When should a new business file for permits? Before spending on anything else. The six-week permit story, the four ways founders play it, and when the rule does not apply.

New principles are added as tracks ship. The fastest way to learn them is to play them.