Why this instead of Anthropic's reference Claude Code development container?

https://docs.anthropic.com/en/docs/claude-code/devcontainer: "The container’s enhanced security measures (isolation and firewall rules) allow you to run claude --dangerously-skip-permissions to bypass permission prompts for unattended operation."

I also use the default one by Anthropic. It's a good start and simple enough to adjust for any needa.