ZK-Sync! This network has yet to develop, and we are still early! Do activities, build projects, help develop. https://ecosystem.zksync.io/Scroll - I don't know why so little is said about Scroll, although it is also a great solution for zkEVM Scaling! https://scroll.io/Arbitrum - https://arbitrum.foundation (check the ecosystem section, there's a lot of interesting stuff)Optimism - the optimism team still has a lot of money left over for the community. It's a great opportunity...