AsmBB

Maybe this helps a little bit:

https://asmbb.org/how-to-install-asmbb-on-vps-with-nginx-and-systemd.6/

Another answer: FORTRAN, even Fortran 90.

Upon further searching and sleuthing, there seems to be a good read-world example of extensive data...

Here goes a newbie question:

<rant>

Have been trying to dig up information on data structures...