Checklists for software errors, setup, and tool workflows.

Fix Git Clone Connection Timed Out on Windows 10

When you run git clone on Windows 10 and see a connection timed out error, it usuall...

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 Windows Update Error 0x80070005 by Taking Ownership

What Causes Error 0x80070005?

This error usually means Windows Update doesn't have pe...

How to Fix Cloudflare Error 526: Invalid Origin Certificate

If you see Error 526: Invalid SSL Certificate in Cloudflare, it means Cloudflare...

Fix Python Venv Not Activating in PowerShell

You open PowerShell, navigate to your project, and run venv\Scripts\activate but not...

Fix Git Detached HEAD State in Visual Studio Code

You open your project in Visual Studio Code, check the Git graph or status bar, and see something...