diff --git a/cachix/garnix.nix b/cachix/garnix.nix
new file mode 100644
index 0000000..b0f11d5
--- /dev/null
+++ b/cachix/garnix.nix
@@ -0,0 +1,12 @@
+{
+  nix = {
+    settings = {
+      substituters = [
+        "https://cache.garnix.io"
+      ];
+      trusted-public-keys = [
+        "cache.garnix.io:CTFPyKSLcx5RMJKfLo5EEPUObbA78b0YQ2DTCJXqr9g="
+      ];
+    };
+  };
+}