Maybe you can circumvent the need for electro ice byelectronics by using nanobot networks. But it would be slow. But at least they could reproduce themselves.
For electronics:
The telescope does it
Surely your VNP has some kind of sophisticated very large telescope to spot things in the nothingness of Space. Turns out, in chip manufacturing, the projector with its optics is the most complicated part!
The hard vacuum is giving you a Fab space for free. Just blow up a tent with an inert gas and you have a very clean atmosphere to work in. No dust there.
Chip Fabs are built as vibration-free as possible. That's for free in space.
Then you need a good monocrystal of Silicon or any other future chip material. That's low tech, we were making them 70 years ago. Today those are bigger and cleaner, but still that's not the point which would stop a VNP.
Then you need to saw it into plates and polish those into perfectness. I still guess it wouldn't stop a VNP.
Then you have to apply chemical agents, layer after layer, and light them with a miniaturized plan of the chip. This is the complicated part, it is here where the battles are fought today.
You take a supersized chip plan, use some kind of optics to miniaturize it to the wished-for size and then you use the smallest photon (read: highest possible energy, today this is UV) that your optics can work with, to project the picture on the waver. Clean away the agent, apply the next layer of chemicals, repeat with the next layer's chip plan. You need to repeat that a dozen times over with different chemicals.
They are even building limited 3d structures today, but I don't know how... I left that area 20 years ago. 😬
The consecutive plans have to be projected to the exact same spot, to within few nanometers exact for today's electronics, as sharp as possible. There is always something going wrong with today's tech, so that's the reason why we have computers with three processor cores: the non-functioning ones are software-disabled, the others sold. You could use those little failures as a story-device to explain differing personalities among your probes.
Your VNP certainly has super-good optics for space observation and the capability to replace them in case of. I think it has matching production capabilities already, right?
So there is no reason not to give it the electronics production optics, too. Or plans how to make them and how to use them.
It all comes down to the little fine adjustments in the end, which is time-costly. But if a VNP has something then it is patience and time, so no problem here.