Luna Heyman developed a customizable Neovim Catppuccin theme configuration for the catppuccin/nix repository, focusing on enabling user-defined theme settings to be passed through the Nix-based setup function. By integrating with Home Manager and leveraging Nix for configuration management, Luna ensured that personalized theming options could be applied consistently across developer environments, reducing configuration drift and improving reproducibility. The work demonstrated a solid grasp of infrastructure-as-code practices and Nix language fundamentals. Over the course of the month, Luna delivered one feature with no reported bugs, reflecting a focused and well-executed engineering effort that enhanced maintainability and onboarding speed.