Checklists for software errors, setup, and tool workflows.

Nginx 502 Bad Gateway: PHP-FPM Fix Guide

Seeing a 502 Bad Gateway error from Nginx usually means it can't reach PHP-FPM. This is common af...

Fix PowerShell Mac Module Installation Failures

When you try to install a PowerShell module on macOS using Install-Module, you might...

Windows Defender Authentication Failed: Step-by-Step Checklist

You open Windows Security and see 'Authentication failed' when trying to use Windows Defender. Th...

Fixing npm Dependency Conflicts from Duplicate Packages

You run npm install and see warnings about unmet peer dependencies or conflicting ve...

Fix Remote Desktop Mac Full Screen Not Working

You connect to a remote Windows PC from your Mac using Microsoft Remote Desktop, but the session ...

Fix Docker Build Error: 'failed to solve: manifest not found'

You run docker build and get an error like:

failed to solve: error fetching ...