Comment by Rochus

Welcome. Actually we learned Modula-2 when I was at ETH in the eighties, and I had even a job at DEC Switzerland for some time where I had to develop course ware for the VAX Modula-2 compiler, but it was from DEC as far as I remember (probably this one: https://github.com/GunterMueller/DEC-Modula-2). Luon is actually a subset of my Oberon+ language; maybe you want to have a look at it: https://oberon-lang.github.io/.