Checklists for software errors, setup, and tool workflows.

1. Reproduce

2. Isolate

3. Apply

4. Verify

Latest checklists

If you see "DNS probe finished NXDOMAIN" in your browser, it means your device couldn'...

You're about to merge a branch, but you've been burned by merge conflicts before. This ch...

You sign out of Windows, sign back in, and the taskbar icons you pinned are gone—or some system i...

You run pnpm install and see ERR_PNPM_NO_OFFLINE_META. This usually hap...

You set up a wildcard subdomain page rule in Cloudflare—like * .example.com/*—but it...

If you're on macOS and npm run build fails, you're not alone. This command o...