added my first item, the stub

src/main/java/de/jottyfan/minecraft/Gtamfmd.java

@@ -5,11 +5,15 @@ import net.fabricmc.api.ModInitializer;
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
 
+import de.jottyfan.minecraft.item.ModItems;
+
 public class Gtamfmd implements ModInitializer {
 	public static final String MOD_ID = "gtamfmd";
 	public static final Logger LOGGER = LoggerFactory.getLogger(MOD_ID);
 
 	@Override
 	public void onInitialize() {
+		ModItems.registerModItems();
 	}
 }
+

src/main/java/de/jottyfan/minecraft/item/ModItems.java

@@ -0,0 +1,31 @@
+package de.jottyfan.minecraft.item;
+
+import de.jottyfan.minecraft.Gtamfmd;
+import net.fabricmc.fabric.api.itemgroup.v1.ItemGroupEvents;
+import net.minecraft.item.Item;
+import net.minecraft.item.Item.Settings;
+import net.minecraft.item.ItemGroups;
+import net.minecraft.registry.Registries;
+import net.minecraft.registry.Registry;
+import net.minecraft.registry.RegistryKey;
+import net.minecraft.registry.RegistryKeys;
+import net.minecraft.util.Identifier;
+
+public class ModItems {
+
+	public static final Item STUB = registerItem(
+		Identifier.of(Gtamfmd.MOD_ID, "stub"), new Item.Settings());
+
+	private static Item registerItem(Identifier identifier, Settings settings) {
+		RegistryKey<Item> registrykey = RegistryKey.of(RegistryKeys.ITEM, identifier);
+		Item item = new Item(settings.useItemPrefixedTranslationKey().registryKey(registrykey));
+		return Registry.register(Registries.ITEM, identifier, item);
+	}
+
+	public static void registerModItems() {
+		Gtamfmd.LOGGER.info("registering mod items for " + Gtamfmd.MOD_ID);
+
+		ItemGroupEvents.modifyEntriesEvent(ItemGroups.TOOLS)
+		  .register(entries -> { entries.add(STUB); });
+	}
+}

src/main/resources/assets/gtamfmd/items/stub.json

@@ -0,0 +1,6 @@
+{
+	"model": {
+		"type": "minecraft:model",
+		"model": "gtamfmd:item/stub"
+	}
+}

src/main/resources/assets/gtamfmd/lang/de_de.json

@@ -0,0 +1,3 @@
+{
+	"item.gtamfmd.stub": "Stummel"
+}

src/main/resources/assets/gtamfmd/lang/en_us.json

@@ -0,0 +1,3 @@
+{
+	"item.gtamfmd.stub": "Stub"
+}

src/main/resources/assets/gtamfmd/models/item/stub.json

@@ -0,0 +1,6 @@
+{
+	"parent": "minecraft:item/generated",
+	"textures": {
+		"layer0": "gtamfmd:item/stub"
+	}
+}