Mel Systems / Themelio Corporation develops Mel, a clean-slate L1 intended to serve as low-level infrastructure for decentralized applications and protocols. Its design emphasizes a coin-based data model, governance-free neutrality, trustless light clients, and off-chain composability so non-blockchain programs can use on-chain security. The project also provides node-running and protocol-development guides, supports the MEL and SYM token system including the Melmint stability mechanism, and is building Earendil, a Mel-secured anonymous communication and payment network.