13a. The Highlander Principle has three important corollaries:
- If you insist on using containers, use them *only* for service configuration and isolation, not for package management.
- An OS that manages its "core" separately from "applications" or "ports" or whatever is misdesigned.
- If you need software that hasn't been packaged in the form your OS-level package manager wants, you need to package it in that form yourself.