Add nix-fast-build

Signed-off-by: Nikolaos Karaolidis <nick@karaolidis.com>

hosts/common/configs/user/console/home-manager/default.nix

@@ -26,7 +26,6 @@
           experimental-features
           download-buffer-size
           substituters
-          trusted-substituters
           trusted-public-keys
           netrc-file
           ;

hosts/common/configs/user/console/nix/default.nix

@@ -4,7 +4,10 @@
   environment.persistence."/persist/cache"."${home}/.cache/nix" = { };
 
   home-manager.users.${user} = {
-    home.packages = with pkgs; [ nurl ];
+    home.packages = with pkgs; [
+      nix-fast-build
+      nurl
+    ];
 
     programs.zsh.shellAliases = {
       nrs = "sudo nixos-rebuild switch --flake .#$(hostname) --show-trace";