Checklists for software errors, setup, and tool workflows.

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Fix 'Python Is Not Recognized as an Internal or External Command'

When you type python in the Command Prompt and see 'python is not recognized...

Fix Nginx 'upstream connection refused' When Talking to PHP-FPM
You're seeing upstream connection refused in your Nginx error log, and your site...

How to Set npm Prefix to Avoid Permission Denied Errors
If you've seen EACCES: permission denied when running npm install -g

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...

How to Fix Windows 11 Taskbar Icons Missing After Update After a Windows 11 update, some users find that taskbar icons—like the Start button, search, or p...

Git Merge Conflict: Keep Both Files Instead of One When you run git merge and get a conflict, Git stops and marks the conflicting files...

Checklists for software errors, setup, and tool workflows.

Latest checklists

Fix 'Python Is Not Recognized as an Internal or External Command'

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

How to Set npm Prefix to Avoid Permission Denied Errors

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

How to Fix Windows 11 Taskbar Icons Missing After Update

Git Merge Conflict: Keep Both Files Instead of One

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