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

Docker Nginx 502 Bad Gateway: Memory Limit Fix

You're running Nginx in Docker as a reverse proxy, and suddenly you see 502 Bad Gateway error...

Fix Python venv 'No such file or directory' Error on Activation

You create a virtual environment with python -m venv myenv, then try to activate it ...

How to Repair Windows Security App Issues

If the Windows Security app won't open, shows a blank screen, or gives errors like "This ...

How to Fix Git Clone Timeout Error on Mac

If you're seeing a timeout error when running git clone on your Mac, the clone f...

Fix Git SSL Certificate Problem: Unable to Get Local Issuer Certificate

Fix Docker Compose Port Already Allocated on Linux

You run docker-compose up and get an error like Error starting userland proxy:...