EIL: Trust minimized cross-L2 interop

Ethereum Interop Layer (EIL) is proposed as a cross-L2 standard that lets users sign once for a cross-chain transaction without adding new trust assumptions. The article says it is built on ERC-4337 account abstraction, with users initiating and settling cross-L2 actions directly from their wallets rather than through relayers or solvers. For token transfers, it describes an optimistic atomic-swap design that avoids secrets and reduces source-chain transactions to two, one per party, with no destination-chain transaction. Liquidity providers, called XLPs, register and deposit funds in a CrossChainPaymaster and lock stake on L1, with an 8-day unstake delay.