Knowledge base for software setup, errors, and daily tool work.

Git Merge Conflict: Keep Both Files Instead of One

When you run git merge and get a conflict, Git stops and marks the conflicting files...

Docker Desktop Engine Stopped: Antivirus Interference Fix

Docker Desktop suddenly shows 'Engine Stopped' and containers fail to start. One common c...

Python Memory Error When Processing Large Files: Troubleshooting Checklist

You're running a Python script that reads a large file—maybe a CSV with millions of rows, a l...

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 Nginx Upstream Connection Refused in Docker

You have Nginx running, either on the host or in a container, proxying to another Docker containe...

Checklist for Troubleshooting Nginx Permission Denied Errors

Understanding the Problem

When Nginx returns a 403 Forbidden or logs an error like ...