4o4 app

devlog

Notes from a playground that runs on broken things.

Build logs, tactics, and the non-obvious details from working with AI tools every day. New tools land on subdomains; the writing lives here.

Posts 01
  1. 01

    How to get three Claude/Codex usage windows in a working day

    The 5-hour rolling window is widely misunderstood. Here is the schedule, the trick, and a tiny script that makes it real.