During June 2025, Abyssien developed the Chemical Bath Washing Filter Tagging feature for the GregTech-Modern repository, focusing on enhancing in-game item processing. By introducing a new 'Liquid' tag linked to material properties, Abyssien enabled more granular filtering and control over which items can be washed in a chemical bath. This Java-based implementation leveraged skills in API integration and mod development, establishing a foundation for future property-driven automation. The work emphasized maintainable code and extensibility, addressing the need for precise item filtering without reported bugs. Overall, Abyssien’s contribution deepened the game’s processing mechanics and improved the mod’s long-term flexibility.