It was actually pretty janky. I had half the cores on my home server, all the cores of my laptop at night (since I was working on it at the time), and all the cores of my desktop running for a few weeks. And at the beginning, I rented 48 CPUs from bithost for about 36 hours. Each script's output was just written to a file when an npub was found.

I pointed the Rana scripts on each machine to output found npubs to a shared folder on my NAS, and I wrote a cron script to pull any found npubs from the rented server so I wouldn't lose any when it shut down.