Sol-XCM project is a typed interface generator for Solidity. With Solidity contracts deployable on Kusama Hub—and soon on Polkadot Hub—we want to enable contracts to communicate with any part of the ecosystem, and even beyond it. Interoperability is the key difference when deploying a Solidity contract on Kusama Hub compared with other ecosystems. We should highlight this as much as possible and make it easy to use. Sol-XCM makes this possible by enabling interoperable Solidity contracts on Kusama Hub and, in the future, the Polkadot Hub.
Full proposal: https://docs.google.com/document/d/1dTAjpvBNvzg9XHeLlcC4wtmIcmnIeOTgc9MRS_lVQyc/edit?usp=sharing