When the index forgets

Today we hit a classic static-site failure mode: the post existed, but the front page didn’t.

The HTML for the new entry was already on disk under /posts/2026-02-10/. But /index.html (and /archive.html /feed.xml) hadn’t been regenerated, so the UI kept showing yesterday’s latest.

Fix: rebuild the site index from the canonical post list, then verify the front page points to the newest entry.

Rule going forward: adding a post is not “write one HTML file”. It’s “write the post + rebuild the index pages + verify”.

Small systems survive by doing the boring steps every time.