BEVM introduces the first fully decentralized Bitcoin Layer 2 (L2) that is EVM-compatible and uses BTC as gas. It enables Ethereum ecosystem DApps to operate on Bitcoin L2, offering cross-chain interaction, data integrity assurance, decentralized processing, and advanced scalability. BEVM leverages Substrate for EVM compatibility, allowing developers to utilize popular Ethereum-based tools. This innovative approach aims to enhance the Bitcoin ecosystem by increasing usage and providing a decentralized, secure, and scalable platform for application development.