Checklists for software errors, setup, and tool workflows.

GitHub Actions Runner Not Connecting: Fixes That Work

You've set up a self-hosted GitHub Actions runner, but it never appears online or shows a "runner...

Fix 504 Gateway Timeout with Curl Command

When you see a 504 Gateway Timeout error, it means a server upstream (like a proxy or gateway) di...

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

You run docker build and get an error like:

failed to solve: error fetching ...

Fix PowerShell Token Expired Error 401

If you're seeing a 401 status code with a message like "token expired" in PowerShell, it usually ...

Fix Chrome Profile Permission Denied Error in Command Line

When you try to launch Google Chrome from the command line with a custom profile directory, you m...

Fix Windows Update Stuck on Checking for Updates Due to Invalid Configuration

If Windows Update hangs on "Checking for updates" for an extended period, an invalid configuratio...