diff --git a/fabric/src/datagen/java/lgbt/greenhouse/menderman/datagen/MendermanDataGenerator_TagsProvider_Multiver.java b/fabric/src/datagen/java/lgbt/greenhouse/menderman/datagen/MendermanDataGenerator_TagsProvider_Multiver.java
new file mode 100644
index 0000000..ae08a6d
--- /dev/null
+++ b/fabric/src/datagen/java/lgbt/greenhouse/menderman/datagen/MendermanDataGenerator_TagsProvider_Multiver.java
@@ -0,0 +1,44 @@
+package lgbt.greenhouse.menderman.datagen;
+
+import java.lang.invoke.MethodHandle;
+import java.lang.invoke.MethodHandles;
+import java.lang.invoke.MethodType;
+
+import net.minecraft.data.tags.TagAppender;
+import net.minecraft.tags.TagKey;
+
+import net.fabricmc.fabric.api.datagen.v1.provider.FabricTagsProvider;
+
+final class MendermanDataGenerator_TagsProvider_Multiver<T> {
+	// MHs for fast non-reflective access
+	private static final MethodHandle unbound$FabricTagsProvider$builder;
+	private final MethodHandle FabricTagsProvider$builder;
+
+	static {
+		try {
+			MethodHandles.Lookup lookup = MethodHandles.privateLookupIn(FabricTagsProvider.FabricIntrinsicHolderTagsProvider.class, MethodHandles.lookup());
+
+			unbound$FabricTagsProvider$builder = lookup
+					.findVirtual(
+							FabricTagsProvider.FabricIntrinsicHolderTagsProvider.class,
+							"valueLookupBuilder",
+							MethodType.methodType(TagAppender.class, TagKey.class)
+					);
+		} catch (NoSuchMethodException | IllegalAccessException e) {
+			throw new RuntimeException(e);
+		}
+	}
+
+	MendermanDataGenerator_TagsProvider_Multiver(FabricTagsProvider.FabricIntrinsicHolderTagsProvider<T> provider) {
+		FabricTagsProvider$builder = unbound$FabricTagsProvider$builder.bindTo(provider);
+	}
+
+	@SuppressWarnings("unchecked") // checked in parameters
+	public TagAppender<T, T> builder(TagKey<T> tag) {
+		try {
+			return (TagAppender<T, T>) FabricTagsProvider$builder.invokeExact(tag);
+		} catch (Throwable e) {
+			throw new RuntimeException(e);
+		}
+	}
+}