Extest is in nixpkgs now, let's use that option instead

nixos/hosts/shodan/configuration.nix

@@ -35,7 +35,6 @@
   nixpkgs = {
     # You can add overlays here
     overlays = [
-      inputs.extest.overlays.default
     ];
     # Configure your nixpkgs instance
     config = {
@@ -55,7 +54,6 @@
     alejandra
     btrfs-progs
     efitools
-    extest
     git
     git-filter-repo
     home-manager
@@ -68,7 +66,6 @@
     rsync
     rustdesk
     sbctl
-    steam
     udisks
     util-linux
     wget
@@ -121,9 +118,7 @@
     enable = true;
     remotePlay.openFirewall = true; # Open ports in the firewall for Steam Remote Play
     dedicatedServer.openFirewall = true; # Open ports in the firewall for Source Dedicated Server
-    package = pkgs.steam.override {
-      extraProfile = ''export LD_PRELOAD=${pkgs.extest}/lib/libextest.so:$LD_PRELOAD'';
-    };
+    extest.enable = true;
   };
   hardware.opengl.driSupport32Bit = true; # Enables support for 32bit libs that steam uses