Monthly summary for 2024-12: Delivered notable features and resolved deployment issues across two repositories, strengthening deployment flexibility and reliability for Cardano node and wallet deployments. Key feature delivered: configurable base directories for Cardano node state and runtime data, including refactored NixOS service configuration to honor user-defined paths and ensured systemd service references align with configured directories. Major bug fix: corrected the cardano-node package reference in the NixOS module for cardano-wallet, eliminating a package selection mismatch. Overall impact: improved operational control for operators, safer deployment configurations, and reduced maintenance friction. Technologies and skills demonstrated: Nix/NixOS module development, systemd integration, Nix packaging, and configuration refactoring, with a clear focus on business value and reliability.