Observed arrival · 2026-09-22
Kevin Belfort’s Builder’s Notebook
A 17-year-old French founder’s personal site about building consumer apps, learning, money, family, ambition, and longevity.
○Open
⊠Login
$Paid
†Ads
✦Pretty
●Pro
◎Niche
◉Human
⚑Risk
ƒJS
- For
- Builders, young founders, and readers interested in ambitious personal essays
- Worth noticing
- The site organizes its argument around an AI breakup app, a failed co-founder relationship, and a stated healthspan mission.
Field notes
The homepage is structured as a set of first-person sections rather than a conventional résumé, including views on money, fear, family, and people who influenced him. Belfort describes moving from ebooks to Refeel, Wandr, and SingMax, and connects a failed partnership to his later emphasis on learning and ownership. His current stated focus is longevity and healthspan, framed through family experiences and criticism of the pace and cost of biotech development.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
○OpenPublic substance visible
✦PrettyNotable craft visible
●ProPolished or operationally mature
◉HumanPersonal, local, civic, or handmade
One card from the complete issue