<?xml version="1.0" encoding="UTF-8"?><rss version="2.0"><channel><title>4o4</title><description>A playground for AI tools, build notes, and the occasional non-obvious trick.</description><link>https://blog.4o4.app/</link><item><title>How to get three Claude/Codex usage windows in a working day</title><link>https://blog.4o4.app/blog/three-claude-codex-windows/</link><guid isPermaLink="true">https://blog.4o4.app/blog/three-claude-codex-windows/</guid><description>The 5-hour rolling window is widely misunderstood. Here is the schedule, the trick, and a tiny script that makes it real.</description><pubDate>Sat, 25 Apr 2026 00:00:00 GMT</pubDate></item></channel></rss>