diff --git a/extras/dev.nix b/extras/dev.nix
index 7ee9265..1dea5d2 100644
--- a/extras/dev.nix
+++ b/extras/dev.nix
@@ -1,8 +1,12 @@
 {pkgs, ...}: {
-    nix.extraOptions = ''
-        extra-substituters = https://devenv.cachix.org
-        extra-trusted-public-keys = devenv.cachix.org-1:w1cLUi8dv3hnoSPGAuibQv+f9TZLr6cv/Hm9XgU50cw=
-    '';
+    nix.settings.substituters = [
+        "https://helix.cachix.org/"
+        "https://devenv.cachix.org"
+    ];
+    nix.settings.trusted-public-keys = [
+        "helix.cachix.org-1:ejp9KQpR1FBI2onstMQ34yogDm4OgU2ru6lIwPvuCVs="
+        "devenv.cachix.org-1:w1cLUi8dv3hnoSPGAuibQv+f9TZLr6cv/Hm9XgU50cw="
+    ];
     services.lorri.enable = true;
 
     services.scx.enable = true;
diff --git a/flake.nix b/flake.nix
index 473f509..f1e9519 100644
--- a/flake.nix
+++ b/flake.nix
@@ -31,17 +31,6 @@
         lsfg-vk-flake.inputs.nixpkgs.follows = "nixpkgs";
     };
 
-    nixConfig = {
-        extra-substituters = [
-            "https://helix.cachix.org/"
-            "https://devenv.cachix.org"
-        ];
-        extra-trusted-public-keys = [
-            "helix.cachix.org-1:ejp9KQpR1FBI2onstMQ34yogDm4OgU2ru6lIwPvuCVs="
-            "devenv.cachix.org-1:w1cLUi8dv3hnoSPGAuibQv+f9TZLr6cv/Hm9XgU50cw="
-        ];
-    };
-
     outputs = {
         nixos,
         self,