Upgrading Precursor’s TRNG

If you've not heard of the Precursor phone project: https://precursor.dev/

See also this talk, also by Bunnie Huang, on Precursor. He also discusses supply-chain security and the ability to verify that your own hardware hasn't been tampered with. https://www.youtube.com/watch?v=w8BA6_9HCzk

This honestly seems like it could be interesting but I don't grok it at all being dropped in with zero context.