Checklists for software errors, setup, and tool workflows.

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Latest checklists

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

Fixing Nginx Permission Denied on Mounted Drive
When you mount an external drive and point Nginx to serve files from it, you may get a 403 Forbid...

Fix Docker Build Context Canceled in VS Code
When building Docker images from within VS Code, you might see an error like build context ...

Fixing Nginx Upstream Connection Refused and Permission Denied
If you see connect() failed (111: Connection refused) or connect() failed (13:...

Fix Docker Nginx 502 Bad Gateway Upstream Error
When running Nginx as a reverse proxy in Docker, a 502 Bad Gateway error with 'upstream' ...

Fix Node Sass Build Failed: Reinstall Steps
If you're seeing a "node sass build failed" error when running npm install or buildin...