You can watch some videos on it but generally it’s not too hard. You buy the circuit board and solder all the parts on according to the instructions. The nixie tubes must be bought separately. They were only ever made in the USSR so most come from Russia. Buy extras because they are so old some fail. Then just power that sucker up. The tubes are quite fiddly and there are different types and sizes so you have to buy the board for the type you are building. The real fun is building the case of your choice.
I use the crap out of my computer.
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