udev is probably referencing smart contracts(which turn blockchains from shared dbs to shared state-machines), and zk(which allows for cryptographic guarantees of arbitrary computation, and facts about said computation without revealing details of computation). Those are two major innovations on the tech side, there's also rollups, blobs, and a whole host of other interesting developments in the EVM(ethereum virtual machine) ecosystem.

But we were talking about “cryptocurrency”. Smart contracts, roll ups, zk are not cryptocurrencies. I get that they are related.