Here's also an efficient and parallel vainhasher in C, which could probably be wrangled into a similar script to get more digits in less time. It can do 6 hexdigits in under a minute, and 8 hexdigits in a few hours: https://github.com/century-arcade/src/tree/master/tools/vain...
How would hosting a blockchain on the servers of a centralized company whose sole purpose to exist is to be a centralized gateway for what was by all rights a decentralized lead to a world of software development that is fully decentralized?! That sounds like the exact opposite of what we need to do :/.
This made me laugh out loud. Thank you.
Possibly bitcoin ASICs can be used to find really long vanity prefixes.