Why the name Atreus?

Maybe I’m the only one that was wondering this, and its of no interest to anyone else, but does anyone know why the Atreus was named the Atreus?

Reference to Greek mythology? Or just a happenstance name choice?

In case no one knows you could ask Phil Hagelberg, you can find his mail on his site: https://atreus.technomancy.us/

Had no idea the history. Thanks for the link to Phil Hagelberg’s page. Insightful.