Writing

Each of these is built on something measured here and not available anywhere else. Start with the pre-launch checklist if you want the whole shape first.

The production mistakes that show up in almost every codebase

Measured across 68 of them — Django, Rails, Sentry, GitLab. The most common problems are not the ones you would guess.

2026-09-02

Run every check that applies to your project, on your machine, free and unlimited:

npx launchprep