diff --git a/machines/common/nogui/default.nix b/machines/common/nogui/default.nix
index 891dc01..2343af3 100644
--- a/machines/common/nogui/default.nix
+++ b/machines/common/nogui/default.nix
@@ -49,6 +49,8 @@
       experimental-features = ["flakes" "nix-command" "repl-flake"];
       auto-optimise-store = true;
       warn-dirty = false;
+      substituters = ["https://jolheiser.cachix.org"];
+      trusted-public-keys = ["jolheiser.cachix.org-1:fiKkfTuHFqDK5ZOVxcqb4InUkKsrTvtMLISid7XvuVg="];
     };
   };