Software comparisons, alternatives, and tool decision notes.

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

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

fatal: Unable to create &#...

How to Fix Nginx Redirect Loop in Server Block

You set up a server block in Nginx, but now the browser keeps redirecting—http to https, or www t...

Docker Pull Access Denied After Login: How to Fix

You run docker pull myimage after logging in with docker login, but get...

How to Limit Chrome Tab Memory Usage

If your computer slows down when you have many Chrome tabs open, you're not alone. Chrome is ...

Fix Nginx 502 Bad Gateway with Docker Environment Variables

If you see a 502 Bad Gateway from nginx running in Docker, it usually means ngin...

Fix DNS Probe Finished NXDOMAIN for a Specific Website

If you see the error "DNS_PROBE_FINISHED_NXDOMAIN" in Chrome when trying to visit a speci...