An emulator is available for running Oberon! It's really easy to run. https://github.com/pdewacht/oberon-risc-emu (make && ./risc DiskImage/Oberon-2016-08*)
miniblog.
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Reading about Oberon on RISC-V, and I'm surprised to learn that adding a USB stack would probably be a major increase in total lines of code! https://news.ycombinator.com/item?id=25501944
Smalltalk's ability to select and run text anywhere is really interesting. Reminds me somewhat of Oberon's text UI.