Hackernews posts about Oberon

Oberon is an open-source software development environment and operating system that provides a unique combination of a cross-platform IDE and an embedded OS for building robust and efficient applications.

Related: Juice  
  1. Oberon Pi (pascal.hansotten.com)
  2. Project Oberon (www.projectoberon.net)
  3. Free Oberon (free.oberon.org)