I would love to see people start to move these simulators onto the web, https://infinitemac.org, like, so that the systems were more accessible to casuals.
(I've built two online systems for teaching my students computing: https://bcp.cs.montana.edu and https://mtmc.cs.montana.edu w/a similar vibe)
The DMS operating system on the 1130 had a 5-character filename limit. Chuck Moore wanted to name his language FOURTH, to signal a fourth-generation language. The filename limit truncated the name to FORTH. A disk system constraint from 1968 is why the language is called Forth.
It's amazing how many different, incompatible computer systems IBM had back then.
I always wondered what if time hardware development stopped in 1969: how far we couuld go with such machines with new fresh software? :)
My first computing experience: Fortran on an 1130 in about 1967.