diff --git a/flake.nix b/flake.nix
index 9c7a14e..fc8f4d0 100644
--- a/flake.nix
+++ b/flake.nix
@@ -3,18 +3,16 @@
 
   nixConfig = {
     extra-substituters = [
+      "https://nix.codrs.ru/main"
       "https://nix-community.cachix.org"
-      # "https://cache.garnix.io"
       "https://hyprland.cachix.org"
       "https://ezkea.cachix.org"
-      "https://risdeveau.cachix.org"
     ];
     extra-trusted-public-keys = [
+      "main:kpwMe+9BsGJ/IUb7i3iadaV38y5/Yuqoct0mf7wI9ds="
       "nix-community.cachix.org-1:mB9FSh9qf2dCimDSUo8Zy7bkq5CX+/rkCWyvRCYg3Fs="
-      # "cache.garnix.io:CTFPyKSLcx5RMJKfLo5EEPUObbA78b0YQ2DTCJXqr9g="
       "hyprland.cachix.org-1:a7pgxzMz7+chwVL3/pzj6jIBMioiJM7ypFP8PwtkuGc="
       "ezkea.cachix.org-1:ioBmUbJTZIKsHmWWXPe1FSFbeVe+afhfgqgTSNd34eI="
-      "risdeveau.cachix.org-1:TsoFSVeLl7iKtUYGX7qsvKPjf2vbNLfLC5v3SAdU8r0="
     ];
   };
 
diff --git a/host/Impreza/configuration.nix b/host/Impreza/configuration.nix
index 2d7389f..ac3d4af 100644
--- a/host/Impreza/configuration.nix
+++ b/host/Impreza/configuration.nix
@@ -24,6 +24,7 @@ in {
     })
   ];
 
+  nix.settings.cores = 3;
   nixpkgs.config.allowBroken = true;
   programs.gamemode.enable = true;
   hardware.bluetooth.enable = true;
diff --git a/host/modules/common.nix b/host/modules/common.nix
index 733fbc0..b6c05e6 100644
--- a/host/modules/common.nix
+++ b/host/modules/common.nix
@@ -11,10 +11,15 @@
   };
 
   config = {
+    nix.settings = {
+      keep-going = true;
+      extra-substituters = [ "https://nix.codrs.ru/main" ];
+      extra-trusted-public-keys = [ "main:kpwMe+9BsGJ/IUb7i3iadaV38y5/Yuqoct0mf7wI9ds=" ];
+      experimental-features = [ "nix-command" "flakes" ];
+    };
     networking.hostName = hostname;
     time.timeZone = lib.mkDefault "Europe/Moscow";
     i18n.defaultLocale = lib.mkDefault "ru_RU.UTF-8";
-    nix.settings.experimental-features = [ "nix-command" "flakes" ];
     system.stateVersion = "23.05";
   };
 }
\ No newline at end of file