diff --git a/README.md b/README.md
index a109711..849ab24 100644
--- a/README.md
+++ b/README.md
@@ -42,6 +42,18 @@ for example:
 Stylix relies on [Home Manager](https://github.com/nix-community/home-manager)
 for a lot of its work, so that needs to be imported too.
 
+## Binary cache
+
+Stylix includes a Haskell program which generates color palettes.
+To avoid compiling this from source, add the following settings:
+
+```nix
+nix.settings = {
+  substituters = "https://danth.cachix.org";
+  trusted-public-keys = "danth.cachix.org-1:wpodfSL7suXRc/rJDZZUptMa1t4MJ795hemRN0q84vI=";
+};
+```
+
 ## Wallpaper
 
 To get started, you need to set a wallpaper image.