The weekly memo that tells builders what changed, what matters, and what to do next.

A 4-2-1 operating brief for technical builders navigating AI, product, and leverage. Every Thursday.

The format

What you get every Thursday

4

Signals

What changed this week, interpreted for builder decisions. Not headlines. Context.

2

Field Notes

One win, one failure from building in the trenches. Real projects, real outcomes.

1

Operator Decision

The one thing to implement this week. Specific, actionable, tested.

Who this is for

Built for builders who:

  • Ship products with AI tools daily and need signal, not noise
  • Want to know what actually changed, not what got announced
  • Build agentic workflows and care about decision quality
  • Are tired of AI newsletters that read like press releases

I'm AP. A software engineer who is fascinated by agentic engineering and the future of software. I started writing The Runtime Memo because I needed it. Turns out other builders do too.

One memo. Every Thursday.