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

How to Fix Python Dependency Conflicts When Installing Packages

You run pip install some-package and get a wall of text about conflicting dependenci...

Docker Compose Environment Variable Not Set in Container: Fixes

You ran docker-compose up, but the environment variable you defined isn't availa...

Fix Python Permission Denied When Running pip install -r requirements.txt

How to Fix Cloudflare 521 Error on Apache Servers

If you see a Cloudflare 521 error, it means Cloudflare’s network cannot reach your origin server....

Fix Git Clone Connection Timed Out After 30 Seconds

When you run git clone and see connection timed out after 30 seconds, i...

Fix 'nginx: configuration test failed unexpected end of file'

When running nginx -t or nginx -t -c /path/to/nginx.conf, you might see...