(Found in the Oberon mailing list today!)

Josef Tampl has announced the availability of an Oberon version for the Raspberry Pi running 32-bit Raspbian.
You can download it from http://www.software-templ.com/shareware.html.

This version of Oberon is based on ofront 1.4, an Oberon-2 to C translator.
It comes with a set of command line tools and an integrated version based
on the Oberon V4 system.
Oberon modules can be compiled and linked into shared object libraries(.so) and loaded and unloaded
from within the Oberon system.

A complete Oberon interface for the popular ‘Wiring’ library (libwiring.so) is included.
This library can be used for convenient access to the Raspberry’s I/O hardware.

You may also want to download manual pages, additional fonts, and platform independent Oberon V4 source and resource files.
The Ofront source files as well as a makefile are hosted on Github.