Checklists for software errors, setup, and tool workflows.

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Debugging Jest Tests in VS Code: Breakpoints Not Hit

You set a breakpoint in a Jest test file, start debugging, and the test runs to completion but th...

Fix Windows 11 Blue Screen After Memory Diagnostic

You ran Windows Memory Diagnostic after a blue screen, and now you're stuck in a loop or seei...

Prevent Git Index Lock File Creation: Practical Fixes

If you see fatal: Unable to create 'path/to/.git/index.lock': File exists., ...

Fix VS Code Git Authentication Failed Keychain Error

If you see "Git authentication failed" in VS Code on macOS, the problem is often the macO...

Fix Firefox Secure Connection Failed Error (Mozilla)

When Firefox shows 'Secure Connection Failed' and a message like MOZILLA_PKIX_ERROR_<...

Fix Chrome Extensions Not Loading Due to Sync Issues
You open Chrome and notice some extensions are missing or not loading. This often happens when sy...