I also made a subpar guide to getting started on IBM i with RPGLE at https://barrettotte.github.io/IBMi-Book. Its a really fun language/environment and I recommend anyone take a try at coding something trivial.
I explored this a bit last year in a project for converting small snippets of RPG, COBOL, and FORTRAN to a punch card like format in https://github.com/barrettotte/punchit
Oh man I always wanted to build some insane things with redstone, but never got around to diving in. I have a little 4-bit architecture I'm working on so one day I can implement it in Minecraft and/or Satisfactory.
I hope to see your creation sometime, that sounds awesome
I also made a subpar guide to getting started on IBM i with RPGLE at https://barrettotte.github.io/IBMi-Book. Its a really fun language/environment and I recommend anyone take a try at coding something trivial.