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

How to Fix Git Refusing to Merge Unrelated Histories

When you try to merge two Git branches that have no common commit history, Git stops you with the...

Why Your Python Virtual Environment Isn't Activating

You created a virtual environment but when you run the activation command, nothing happens or you...

Docker Container Exits Immediately After Entrypoint

You run a Docker container and it stops within seconds. The logs show your entrypoint script ran,...

Fix Docker Volume Permission Denied for Postgres

Fix DNS Probe Finished NXDOMAIN After Changing DNS

After updating your DNS settings—perhaps to use Google Public DNS or Cloudflare—you might see the...