Nayiem implemented the Monolythium Sprintnet Testnet configuration for the cosmostation/chainlist repository, focusing on expanding testnet coverage and improving developer onboarding. Leveraging expertise in Cosmos SDK, EVM compatibility, and blockchain development, Nayiem designed a configuration layer update that introduced explicit endpoints and detailed token metadata for the new testnet. The work captured and documented essential chain parameters, including chain IDs and Bech32 prefixes, using JSON to ensure clarity and accuracy. By targeting only the configuration layer, Nayiem reduced risk while enabling scalable testnet catalog growth, resulting in faster QA cycles and a more robust experience for developers and partners.