diff --git a/README.md b/README.md
index c9c2e640..f99d4779 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,10 @@
 
 There isn't any. This project is only used as the framework for Mindustry.
 
+# Where's the source code for the native libraries?
+
+Most of it is glue generated by [jnigen](https://github.com/libgdx/gdx-jnigen) from comments in the Java source code. External libraries (freetype, soloud, SDL, Box2D, GLEW, etc) are fetched from various sources at build time - see, for example, [this build script](https://github.com/Anuken/Arc/blob/master/backends/backend-sdl/build.gradle#L18).
+
 # How do I make a game with this framework?
 
 Please don't. While there is nothing stopping you from making other games with this framework, there is no "project setup" tool of any kind, and no guide on how to do anything. In addition, I would discourage anyone from making games in Java at all.