Worked on the nix-community/ethereum.nix repository to enhance stability and reliability for Gnosis network deployments by addressing a targeted configuration issue. Focused on blockchain development and configuration management, the work involved fixing the Nimbus validator client binary selection to ensure the correct binary is used for Gnosis networks. This change, implemented using Nix and DevOps practices, reduced the risk of misconfiguration and improved compatibility for end users. The solution was delivered as a single, low-risk commit, providing a clear audit trail and demonstrating careful attention to configuration hygiene while directly improving the user experience for Gnosis validator operators.