Restake Finance, symbolised by its token RSTK, operates within the Ethereum restaking space, allowing the simultaneous staking of Ethereum (ETH) across various platforms. It employs a decentralised approach to rehypothecation, utilising LSTs like stETH as security for its services. Participants deposit LSTs and receive rstETH in return, symbolising their input to EigenLayer. This process is managed by DAO-governed smart contracts, enabling earnings from both EigenLayer and Ethereum staking. RSTK is crucial for governance and providing income to its holders, with a fee applied to all EigenLayer refunds, which is then shared among RSTK token holders.