diff --git a/.gitignore b/.gitignore
index 31d2550..e0a8f35 100644
--- a/.gitignore
+++ b/.gitignore
@@ -23,4 +23,6 @@ run
 runs
 run-data
 
-repo
\ No newline at end of file
+jdk
+.env
+.vscode
\ No newline at end of file
diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..1f4726a
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,3 @@
+.PHONY: build
+build:
+	./gradlew build
\ No newline at end of file
diff --git a/README.md b/README.md
index b421122..0a2f050 100644
--- a/README.md
+++ b/README.md
@@ -1,25 +1,7 @@
+# WIP CodeBio
 
-Installation information
-=======
+## build
 
-This template repository can be directly cloned to get you started with a new
-mod. Simply create a new repository cloned from this one, by following the
-instructions provided by [GitHub](https://docs.github.com/en/repositories/creating-and-managing-repositories/creating-a-repository-from-a-template).
+如何构建: 
 
-Once you have your clone, simply open the repository in the IDE of your choice. The usual recommendation for an IDE is either IntelliJ IDEA or Eclipse.
-
-If at any point you are missing libraries in your IDE, or you've run into problems you can
-run `gradlew --refresh-dependencies` to refresh the local cache. `gradlew clean` to reset everything 
-{this does not affect your code} and then start the process again.
-
-Mapping Names:
-============
-By default, the MDK is configured to use the official mapping names from Mojang for methods and fields 
-in the Minecraft codebase. These names are covered by a specific license. All modders should be aware of this
-license. For the latest license text, refer to the mapping file itself, or the reference copy here:
-https://github.com/NeoForged/NeoForm/blob/main/Mojang.md
-
-Additional Resources: 
-==========
-Community Documentation: https://docs.neoforged.net/  
-NeoForged Discord: https://discord.neoforged.net/
+`make build` 或者: `.gradle build`
diff --git a/src/main/java/com/example/examplemod/events/ModEvents.java b/src/main/java/com/example/examplemod/events/ModEvents.java
new file mode 100644
index 0000000..8207e13
--- /dev/null
+++ b/src/main/java/com/example/examplemod/events/ModEvents.java
@@ -0,0 +1,34 @@
+package com.example.examplemod.events;
+
+import org.slf4j.Logger;
+
+import com.example.examplemod.ExampleMod;
+import com.mojang.logging.LogUtils;
+
+import net.minecraft.commands.Commands;
+import net.neoforged.bus.api.SubscribeEvent;
+import net.neoforged.fml.common.EventBusSubscriber;
+import net.neoforged.neoforge.event.RegisterCommandsEvent;
+import net.neoforged.neoforge.event.entity.player.PlayerEvent;
+import net.neoforged.neoforge.server.command.ConfigCommand;
+
+@EventBusSubscriber(modid = ExampleMod.MODID)
+public class ModEvents {
+    private static final Logger LOGGER = LogUtils.getLogger();
+
+    @SubscribeEvent
+    public static void onCommandsRegister(RegisterCommandsEvent event) {
+        event.getDispatcher().register(Commands.literal("hello")
+                .then(Commands.literal("io").executes((command) -> {
+                    LOGGER.info("OIOIOI!");
+                    return 0;
+                })));
+        ConfigCommand.register(event.getDispatcher());
+    }
+
+    @SubscribeEvent
+    public static void onPlayerCloneEvent(PlayerEvent.Clone event) {
+        event.getOriginal().getPersistentData().putIntArray(ExampleMod.MODID + "homepos",
+                event.getOriginal().getPersistentData().getIntArray(ExampleMod.MODID + "homepos"));
+    }
+}
\ No newline at end of file