According to Planet Daily, Polkadot ecological network Darwinia plans to build OP Stack Layer2 through AltLayer and Avail. Crab SubDAO, as one of the DAO members of Darwinia, will use the AltLayer service to build Ethereum Rollup Layer 2, and use Avail as the data availability layer. The integration not only leverages Op Stack’s Ethereum-compatible capabilities but also reduces transaction costs for users. Currently, the testnet is open to the public.