diff --git a/README.md b/README.md
index 126ea4dc..9aa4b99b 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ A Bukkit server implementation utilizing Mixin.
 ## Installing
 
 1. Download the jar from [release page](https://github.com/IzzelAliz/Arclight/releases) or [build server](https://ci.appveyor.com/project/IzzelAliz/arclight/build/artifacts).
-2. Launch with command `java -jar arclight-coremod-xxx.jar`
+2. Launch with command `java -jar arclight-forge-mcversion-xxx.jar nogui`. The `nogui` argument will disable the server control panel.
 
 ## Support
 
@@ -19,7 +19,18 @@ QQ Group chat 3556966
 
 ## Contributing
 
-To setup development workspace, clone this repository and import the project.
+This project uses Gradle 4.9 as build tool with [arclight-gradle-plugin](https://github.com/IzzelAliz/arclight-gradle-plugin).
+
+To setup development workspace, clone this repository first, and type
+```
+./gradlew remapSpigotJar idea
+```
+
+This will generate proper spigot sources and srg mappings.
+
+Finally, import the project. IntelliJ IDEA is the recommended IDE.
+
+Due to a [MixinGradle bug](https://github.com/SpongePowered/MixinGradle/issues/9), you may build the project twice or the mixin shadows won't get reobfuscated.
 
 ## License