Knowledge base for software setup, errors, and daily tool work.

Docker Compose Environment Variable Not Updating? Fix It

Node.js Memory Limit Increase Not Working: Fixes

You set --max-old-space-size=4096 but Node.js still crashes with a memory error. Thi...

Chrome Extensions Not Loading? Try Disabling Antivirus Temporarily

You open Chrome, head to your extensions, and nothing loads—or newly installed ones disappear. On...

Fix Cloudflare Error 521 After a Server Update

If you see Cloudflare error 521 after updating your server, the origin web server is refusing the...

Git index.lock File Exists: Quick Fix Checklist

You try to run a Git command and see fatal: Unable to create 'path/.git/index.lock'...