diff --git a/cachix/nix-community.nix b/cachix/nix-community.nix
deleted file mode 100644
index b0a63e9..0000000
--- a/cachix/nix-community.nix
+++ /dev/null
@@ -1,8 +0,0 @@
-{
-  nix = {
-    binaryCaches = [ "https://nix-community.cachix.org" ];
-    binaryCachePublicKeys = [
-      "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
-    ];
-  };
-}
diff --git a/configuration.nix b/configuration.nix
index 6d9227f..469c878 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -108,7 +108,6 @@ with pkgs;
     ./modules/printing.nix
     ./modules/periodic.nix
     ./modules/power.nix
-    ./modules/cachix.nix
     ./overlays/emacs.nix
     ./overlays/nix-direnv.nix
   ];
diff --git a/flake.nix b/flake.nix
index 0aa48e3..092923c 100644
--- a/flake.nix
+++ b/flake.nix
@@ -1,6 +1,15 @@
 {
   description = "System configuration for panacea";
 
+  nixConfig = {
+    extra-substituters =
+      [ "https://cachix.cachix.org" "https://nix-community.cachix.org" ];
+    extra-trusted-public-keys = [
+      "cachix.cachix.org-1:eWNHQldwUO7G2VkjpnjDbWwy4KQ/HNxht7H4SSoMckM="
+      "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
+    ];
+  };
+
   inputs = {
     nixpkgs.url = "nixpkgs/nixos-unstable";
     agenix.url = "github:ryantm/agenix";