Replace nixpkgs-unfree with numtide
diff --git a/modules/cachix.nix b/modules/cachix.nix
index 6da2d90..3c3a69b 100644
--- a/modules/cachix.nix
+++ b/modules/cachix.nix
@@ -5,14 +5,14 @@
       "https://collabora.cachix.org"
       "https://nixfiles.cachix.org"
       "https://cache.nixos.org"
-      "https://nixpkgs-unfree.cachix.org"
+      "https://numtide.cachix.org"
     ];
     trusted-public-keys = [
       "hydra.nixos.org-1:CNHJZBh9K4tP3EKF6FkkgeVYsS3ohTl+oS0Qa8bezVs="
       "collabora.cachix.org-1:e5DYzGux57BzidOmwCJ7NJgydrumaTWtVXdswnerMoU="
       "nixfiles.cachix.org-1:QGVJNd+0aetjzU5l/MXrVg2adcrm9+8eL0HhIft3F+c="
       "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
-      "nixpkgs-unfree.cachix.org-1:hqvoInulhbV4nJ9yJOEr+4wxhDV4xq2d1DK7S6Nj6rs="
+      "numtide.cachix.org-1:2ps1kLBUWjxIneOy1Ik6cQjb41X0iXVXeHigGmycPPE="
     ];
   };
   home.home.packages = [ pkgs.cachix ];