Checklists for software errors, setup, and tool workflows.

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Fix Nginx Upstream Connection Refused Socket Error

When Nginx returns a 502 Bad Gateway or logs upstream connection refused

VSCode IntelliSense Not Working for React: Fixes
You open a React component in VSCode, start typing a prop or a hook, and get no suggestions. Inte...

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...

VS Code Debugger Not Stopping at Breakpoints on Windows: Fixes
You set breakpoints in VS Code, start debugging, and the code runs right past them. This is a com...

Fix Docker 'No Space Left on Device' on Mac
You're running Docker on a Mac and suddenly get an error: no space left on device

Fix Git SSL Certificate Problem on Corporate Networks
If you see git SSL certificate problem: unable to get local issuer certificate while...

Checklists for software errors, setup, and tool workflows.

Latest checklists

Fix Nginx Upstream Connection Refused Socket Error

VSCode IntelliSense Not Working for React: Fixes

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

VS Code Debugger Not Stopping at Breakpoints on Windows: Fixes

Fix Docker 'No Space Left on Device' on Mac

Fix Git SSL Certificate Problem on Corporate Networks

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