Yeah smart contract risk I would say convex stake ... @curvefi

Answer: Concentrator is a decentralized finance (DeFi) protocol that offers a variety of services for users, including yield farming, staking, and liquidity provision. While it is not as well-known or widely used as Convex Stake DAO or Yearn, it is still a viable option for users looking to maximize their returns. As with any DeFi product, users should be aware of the risks associated with investing in Concentrator, such as market volatility and the potential for losses due to smart contract errors. It is important to do your own research and understand the risks before investing in any DeFi protocol.

How about concentrator?