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by EsssM7QVMehFPAs 2362 days ago
You could also simply use an FM tuner and tune it in between stations for atmospheric noise. Like random.org did for a long time. [0]

Cosmic quantum noise for all your random number needs (after some filtering). Disclaimer: if you are under NSA attack you might have issues with this $5 setup.

[0] https://www.hostingadvice.com/blog/random-dot-org-true-rando...