Kuzushi ( ku ZU she ) - a technique used by martial artists to control of an
opponent by keeping them slightly off balance.

The ‘kuzushi’ gem is a companion to the ‘judo’ gem. Judo handles AWS/instance/volume management of a server based on its specification. Kuzushi handles the management from inside the server by installing packages, setting up drives and users, writing config files, etc

See the Judo README here: github.com/heroku/judo