Prop 154: [SIPS-140] Incentives Proposal for Real Yield ETH Arbitrum

This proposal is intended to authorize a one-time transfer of 160,000 SOMM from the community pool to a multisig address, which will forward the funds to the staking contract on Arbitrum to incentivize Real Yield ETH Cellar depositors.

See the corresponding forum post for more details: https://community.sommelier.finance/t/sips-140-real-yield-eth-arbitrum-deployment-liquidity-mining-incentives-proposal/1302