diff --git a/README.md b/README.md
index 7a344bd..f748457 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,7 @@ Stuff no<sub><sup>t many</sup></sub> other plugins do.
 Dependencies:
 - **1.21.1 and newer**
 - [ProtocolLib](https://www.spigotmc.org/resources/protocollib.1997/)
-- To use modules marked <sup><sub>N</sub></sup>, you must use a JAR made precisely for your server version.
+- To use modules marked <sup><sub>N</sub></sup>, you must use a JAR [made for the exact server version.](/Minecon724/tweaks724/src/branch/master/docs/BUILDING.md)
 
 # Features
 
diff --git a/docs/BUILDING.md b/docs/BUILDING.md
index 91fecbf..7af000f 100644
--- a/docs/BUILDING.md
+++ b/docs/BUILDING.md
@@ -1,10 +1,17 @@
-1. Download BuildTools, move it into an empty directory and open terminal
-2. Download Minecraft sources:
-   ```
-   java -jar BuildTools.jar --rev 1.21.4 --remapped
-   ```
+First, download NMS. There are two ways:
 
-3. Clone this repository:
+- Use `tools/download_nms.sh`
+- Download BuildTools, move it into an empty directory and run:
+  ```
+  java -jar BuildTools.jar --rev 1.21.4 --remapped
+  ```
+  You must run this for every version you want to build for.
+
+
+
+Then build the plugin:
+
+1. Clone this repository:
    ```
    git clone https://git.m724.eu/Minecon724/tweaks724
    cd tweaks724
@@ -13,13 +20,13 @@
      ```
      git checkout tags/tweaks-0.1.12
      ```
-4. To compile for native version:
+2. For the "native" version:
    ```
    ./mvnw package
    ```
-   To compile for another version:
+   For another compatible version:
    ```
    ./mvnw package -Dproject.craftbukkit.version=v1_21_R3 -Dproject.minecraft.version=1.21.4
    ```
    
-5. Look for `tweaks-0.1.12+1.21.4.jar` in `target/`
\ No newline at end of file
+Look for `tweaks-0.1.12+1.21.4.jar` in `target/`
\ No newline at end of file