Vitalik tweeted to welcome Optimism to join the L2 club with stage 1, and look forward to more ZK L2 joining

According to TechFlow, Vitalik Buterin tweeted that he welcomes Optimism to join the L2 club with stage 1, and looks forward to more L2s joining, especially some ZK ones.

Previously, Optimism announced that OP Stack has officially entered Stage 1, starting with OP Mainnet, and will now focus on Stage 2 decentralization work.