I would like to port some of my text processing code from Go to Oberon 07. One of them is a preprocessor for Pandoc. It needs to build up data structures, write them out as JSON documents in a tmp file and then run exec using Pandoc to process the final output.
In Go (like Python or even C) this is provided in a module. The go "os/exec" module has a nice interface and is not far from being Oberon-ish. Think about adding an Exec.Mod, ExecTest.Mod to Artemis project source. It could be implemented using C's exec. I will need to pay close attention to handling standard input, error and output.