Matt developed cross-mod crafting interoperability features for the GTNewHorizons/NewHorizonsCoreMod and GTNewHorizons/GT5-Unofficial repositories, focusing on recipe flexibility and future-proofing. He integrated the Ore Dictionary using Java, allowing the EFR Blastfurnace to register as an iron furnace, which enabled it to serve as a crafting component in recipes that previously required a specific item. By migrating the Simple Sterling Water Pump recipe to use the 'craftingIronFurnace' Ore Dictionary entry, Matt reduced hard dependencies and improved compatibility across mods. His work demonstrated a solid understanding of modding, crafting recipes, and integration patterns, resulting in more maintainable and interoperable code.