Checklists for software errors, setup, and tool workflows.

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How to Manually Remove a Stuck Git index.lock File

If Git operations suddenly fail with an error like fatal: Unable to create 'path/.git/i...

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 DNS Probe Finished NXDOMAIN Error on Mac
You're browsing on your Mac and suddenly a site won't load, showing the error DNS...

Fixing Nginx 502 Bad Gateway in Docker: Practical Steps
You set up Nginx as a reverse proxy in Docker, but instead of your app you see a 502 Bad Gateway....

Fix Windows Explorer Restarting After Software Install
If you've just installed a program and Windows Explorer starts restarting repeatedly—taskbar ...

Node.js Heap Out of Memory in Production: Practical Fixes
You're running a Node.js application in production when it crashes with FATAL ERROR: In...

Checklists for software errors, setup, and tool workflows.

Latest checklists

How to Manually Remove a Stuck Git index.lock File

Fix VS Code Git Authentication Failed Keychain Error

Fix DNS Probe Finished NXDOMAIN Error on Mac

Fixing Nginx 502 Bad Gateway in Docker: Practical Steps

Fix Windows Explorer Restarting After Software Install

Node.js Heap Out of Memory in Production: Practical Fixes

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