Data for several stages

[ZwerOxotnik]

tl;dr separated data in another file for specific/several uses.

The more complex/repetitive stuff, the more you want to simplify it. Barely, I know who and how did such stuff in Factorio.
Currently, only a few mod devs would be interested in this topic but, nonetheless, there are stuff to discuss etc.

I guess, "separated data" can solve/simplify some stuff with less effort/code.
For instance: data to generate auto-settings for some prototypes; settings for commands.
I'm sure there are much more useful cases, and I'd like to hear/see what cases/ideas come to your mind.