This is great! I remember running System 3 on a 386 back when MS-DOS was king.

Thanks. There is actually also an i386 version of the system in the repository, where I modified the kernel so it runs with Multiboot, making installations much easier. An essential achievement for both platforms were the stand-alone tools, i.e. I can compile and link the whole Oberon system on Linux or any other platform (see https://github.com/rochus-keller/op2/). I even implemented an IDE which I used for the development (see https://github.com/rochus-keller/activeoberon/).