Checklists for software errors, setup, and tool workflows.

Fix VS Code Git Authentication Failed After Update

After updating Visual Studio Code, you may see an error like "Git: Authentication failed"...

Resolving Git Merge Conflicts in Binary Files

You're merging branches and Git reports a conflict in a binary file. Unlike text files, you c...

Fix Nginx 'upstream connection refused' When Talking to PHP-FPM

You're seeing upstream connection refused in your Nginx error log, and your site...

Fix Git SSL Certificate Problem: Unable to Get Local Issuer

You run git clone https://example.com/repo.git and get:

fatal: unable to acc...

Fix 'docker network not found default network' Error

When you see docker network not found default network, it usually means Docker can&#...

Fix Chrome Certificate Error: Invalid Authority & Date/Time Issue

You're browsing in Chrome and see a full-page warning: Your connection is not private...