diff --git a/.config/nix/modules/shell.nix b/.config/nix/modules/shell.nix
index f00d5d8..df4526f 100644
--- a/.config/nix/modules/shell.nix
+++ b/.config/nix/modules/shell.nix
@@ -89,7 +89,6 @@
       d = "delta";
       df = "h git";
       g = "git";
-      hm = "home-manager";
       i = "iex";
       lsd = "eza -d .*";
       m = "mix";
diff --git a/.config/nix/nix.conf b/.config/nix/nix.conf
index 84c0713..84c7ee9 100644
--- a/.config/nix/nix.conf
+++ b/.config/nix/nix.conf
@@ -1,2 +1,2 @@
-substituters = https://cache.nixos.org https://cache.nixos.org/ https://devenv.cachix.org
-trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY= devenv.cachix.org-1:w1cLUi8dv3hnoSPGAuibQv+f9TZLr6cv/Hm9XgU50cw=
+substituters = https://cache.nixos.org
+trusted-public-keys = cache.nixos.org-1:6NCHdD59X431o0gWypbMrAURkbJ16ZPMQFGspcDShjY=