YAML config based multi-mirror Debian chroot creation tool

 bdebstrap is an alternative to debootstrap and a wrapper around mmdebstrap to
 support YAML based configuration files. It inherits all benefits from
 mmdebstrap. The support for configuration allows storing all customization in
 a YAML file instead of having to use a very long one-liner call to mmdebstrap.
 It also layering multiple customizations on top of each other, e.g. to support
 flavors of an image.