Software comparisons, alternatives, and tool decision notes.

Fix Nginx 502 Bad Gateway with Docker and PHP-FPM

You have a Docker setup with Nginx proxying to a PHP-FPM container, and you're getting a 502 ...

Fix Cloudflare SSL Full Strict Certificate Mismatch Error

If you set Cloudflare SSL/TLS encryption mode to Full (strict) and see a certificate mismatch err...

Recover Lost Commits After Git Detached HEAD

You've made commits while in a detached HEAD state, and now you can't see them on any bra...

Fix Nginx HTTP to HTTPS Redirect Loop Error

You set up an HTTP-to-HTTPS redirect in nginx, but now your browser shows a redirect loop error. ...

Fix 'git pull failed index.lock file exists' Error

When running git pull, you may see an error like:

fatal: Unable to create &#...

Fix Chrome Hardware Acceleration Black Screen in Windows 11

If Chrome shows a black screen on Windows 11, especially after an update or when playing video, h...