Really, what’s up with the name? [...] In Mesopotamian mythology, Zaqar or Dzakar is the messenger of the god Sin. He relays these messages to mortals through his power over their dreams and nightmares. [...] https://en.wikipedia.org/wiki/Zaqar
101. zaqar To produce an OpenStack messaging service that affords a variety of distributed application patterns in an efficient, scalable and highly-available manner, and to create and maintain associated Python libraries and documentation. OpenStack Governance Repo