diff --git a/README.md b/README.md
index 10e9e06..984bb5f 100644
--- a/README.md
+++ b/README.md
@@ -1,6 +1,16 @@
 # nim-libnx
 Libnx ported to the Nim programming language. You will need a nim compiler with Nintendo switch support which can be found [here](https://github.com/jyapayne/Nim/tree/nintendo_switch_support) until the PR is accepted.
 
+You also must have DevkitPro and switch (libnx) libraries for [Mac and Linux](https://github.com/devkitPro/pacman/releases) or [Windows](https://github.com/devkitPro/installer/releases) installed. The DEVKITPRO environment variable must also exist and point to a directory with the following structure:
+
+- `DEVKITPRO/portlibs/switch/lib`
+- `DEVKITPRO/libnx/lib`
+- `DEVKITPRO/portlibs/switch/include`
+- `DEVKITPRO/libnx/include`
+
+
+##Install
+
 Simply run
 
 ```bash