An improved version of this video can be found here (including explanation of how it can be used in a startup project, presented by Furkan Bayraktar at the end): https://www.youtube.com/watch?v=pebwHmibla4&feature=youtu.be
Describes the Polylith software architecture, the background, what, how, and why.
High-level documentation: https://polylith.gitbook.io/polylith
The Polylith Tool: http://github.com/polyfy/polylith
The RealWorld example app: http://github.com/furkan3ayraktar/clojure-polylith-realworld-example-app