Irish, in America.

A weekly newsletter on building, learning, and the long game — with occasional whitepapers when something deserves more analysis.

David Carr
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Braindex May 2026

17 days from commit one to App Store review.

The full story of how Braindex went from just an idea to a daily AI vocabulary game live on the App Store — detailing every tool used and every challenge faced.

Read the whitepaper
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The Compound Years · Issue #1 May 2026

What to expect every Sunday.

An experiment, a lesson, a founder, a mindset, and a question every Sunday. Five sections, fifty-two weeks, no exceptions.

Read issue #1