The Protocol: Vitalik Buterin’s stark warning on layer-2 roadmap

Also: Open-source alternative for bitcoin miners, EF’s quantum-computing team and a new lending protocol for XRP What to know : Welcome to The Protocol, CoinDesk's weekly wrap of the most important stories in cryptocurrency tech development. I’m Margaux Nijkerk, a reporter at CoinDesk. In this issue: 'You are not scaling Ethereum': Vitalik Buterin issues a blunt reality check to the biggest crypto networks Bitcoin miners get an open-source alternative as Tether introduces MiningO Quantum threat gets real: Ethereum Foundation prioritizes security with leanVM and PQ signatures Flare unveils new way for XRP holders to earn yield through a massive DeFi upgrade