Solayer is re-staking in the Solana ecosystem, allowing SOL holders to ensure security while earning profits, and keeping assets liquid. It uses the LAYER token for governance and profit distribution, and also enables projects to enhance security using AVS services. Users can convert their re-staked assets into LRT tokens for free operations in DeFi. Solayer is developing rapidly, has high market recognition, and greatly enhances the Solana ecosystem. In the future, it will expand more functionalities but also faces regulatory and technical risks.