Install
Turn one meaningful priority into a repeatable weekly rhythm.
Focus · Learn · Decide · Leverage
Keep the experiment alive after day 30.
The optional 90-day companion will help you install the same decision practice, apply it to real work, and build a rhythm you can sustain—without making the app necessary to benefit from the book.
A deeper continuation
One system, three months of practice.
Apply
Use decision records, reviews, and evidence on real work.
Sustain
Keep what helps, adapt what does not, and make the practice your own.