Short, sweet, and to the point: how to query information about packages available in Debian repositories, such as revision, maintainer, or section.
software that uses docker for packaging instead of RPM or dpkg or something. Everything gets installed into its own container, which is dynamically defined as the current working directory only (no subdirectories, nothing outside of the CWD even when running as root). Every Subuser container hast its own set of access permissions.