Yes, I would prefer the technology remained in my hands.

[That said, he knows the Free Cities has some version of it, and likely uses it in some capacity. Given the situation they were in, however, Viktor will maintain that he did what he needed to do.

Now it's over, and though it all still percolates in the back of his mind, he has moved on to other things.]

It's helpful to think of magic itself as a power source that can be instructed to do all manner of different things. The systems vary, between my world and this one, but the principle is still the same.