The initial iteration of the Spark Protocol will function as a lending platform, offering supply and borrow functionalities for cryptocurrencies ETH, stETH, DAI and sDAI.
Decentralization, MakerDAO, Markets, Cryptocurrencies, Web3Read More
You might also be interested in reading OP_CAT Proposal Assigned BIP-347, Aims to Enhance Bitcoin With Ethereum-Style Smart Contracts.