Technology independent layout library

I work in a small team where we don't all use the same technology, but we have on major most-popular technology. Now I've started to build some pcells to make my work easier, and I'm sharing them with the team. For this one technology this is fine, but since the cells started becoming more and more useful, I've thought about expanding them to different technologies. Now I now that we can get a list of layers from the tech file, filter for metals (for example) and build pcells automatically with this information. However, (if I understand correctly) the technology library has to be selected. What happens if the cell is instantiated with the wrong technology selected? Is it possible that the technology is automatically taken from the library where the pcell is instantiated?

Furthermore, a major concern is the dealing with NDAs. Not everyone in the team has signed up for every technology, so everyone should only have access to the technology they are allowed (so I can't have a file storing all the layer information, even if it's just layer names. I guess that already violates certain NDAs).

In the end I want to have one library that fits 'em all, if possible.

Now I'm definitely not asking for a solution here, but maybe someone can give me some pointers how to start something like this.

Kind regards,

Patrick