Listen to this episode from Spotify: A Product Story on Spotify. This episode is especially geared towards CEOs/CTOs that have to "kill their darlings" and make hard choices. Listen to Google employee number 8 - and SVP of infrastructure at Google - Urs Hölzle, as well as Spotify insiders Tyson Singer, Nicole Bouchard and Emil Fredriksson as we journey from "brilliant" proprietary tech on a few servers in a cupboard, in an apartment, through buying thousands of servers in anticipation of our own growth, to eventually shutting down our own server infrastructure team completely, instead partnering with Google to be able to move up the stack and compete where our resources can make the most difference. Transcript here 

C4-PlantUML combines the benefits of PlantUML and the C4 model for providing a simple way of describing and communicate software architectures - plantuml-stdlib/C4-PlantUML