Worked on modularizing the Crush module in the charmbracelet/nur repository to support both NixOS and Home Manager environments. The approach involved separating the original module into two dedicated components, crush-nixos and crush-home-manager, each with explicit configuration namespaces but sharing a unified options surface. This restructuring addressed cross-context configuration conflicts and improved reliability for users managing mixed NixOS and Home Manager setups. Migration guidance and updated documentation were provided to assist users transitioning from the old to the new module structure. The work leveraged Nix, focused on module separation, and established a scalable pattern for future enhancements and maintenance.