Been running rng on my bitcoin hacking racks for +2 years now, works great

Increased my find of lost bitcoins 2x by using real random numbers and random seeds

https://github.com/room101-dev/Grand-Ultimate-BTC-Hacker

ONERNG I paid $40 usd ebay from czech, but two years ago, but like people here are showing you can roll your own, but unless your an electronic genius, I would spend the $40, and I'm an hw/sw scientist, so $40 is nothing