[aloknnikhil]

At first glance, that just seems like a bunch of libraries linked together to form a binary. That is not open-source. I completely agree with you that there is just not enough clarity out there. For my education, following up with my earlier example, can I remove the layers that have references to all chapters / laws in the constitution except for the ones meant for real-estate? How would I do that with the approaches you mentioned here?

Fundamentally, if I have to "reverse-engineer" something, then it's not open-source.

[ErikBjare]

You would have to do the same fine-tuning as if you had the training data.