Workflow manuals for setup steps, repeatable tasks, and software operations.

How to Fix Nginx Redirect Loop: Step-by-Step Troubleshooting

If you're seeing a redirect loop error (ERR_TOO_MANY_REDIRECTS) in your browser, Nginx is cau...

Fix DNS Probe Finished NXDOMAIN in Edge Browser

When Microsoft Edge shows "DNS_PROBE_FINISHED_NXDOMAIN", it means the browser cannot reso...

Fix Nginx 502 Bad Gateway: Upstream Connection Refused

If you're seeing a 502 Bad Gateway error with "upstream connection refused" in your N...

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 Black Screen During Videos: Hardware Acceleration

If you're watching a video in Chrome and the screen goes black (but audio continues), hardwar...

npm package.json Not Found: Troubleshooting Checklist

When you run npm install or npm start and see package.json not fo...