diff --git a/nix/hosts/PW05CH3L/configuration.nix b/nix/hosts/PW05CH3L/configuration.nix
index 48ed8a4e..af63b0f2 100644
--- a/nix/hosts/PW05CH3L/configuration.nix
+++ b/nix/hosts/PW05CH3L/configuration.nix
@@ -27,25 +27,4 @@
   services.syncthing.enable = true;
 
   nix.nixPath = [ "nixpkgs=${inputs.nixpkgs}" ];
-
-  nix = {
-    gc = {
-      automatic = true;
-      dates = "daily";
-      options = "--delete-older-than 7d";
-    };
-
-    optimise.automatic = true;
-
-    settings = {
-      auto-optimise-store = true;
-
-      experimental-features = [
-        "nix-command"
-        "flakes"
-      ];
-
-      warn-dirty = false;
-    };
-  };
 }
diff --git a/nix/hosts/common/default.nix b/nix/hosts/common/default.nix
index bb8128cc..b0502b27 100644
--- a/nix/hosts/common/default.nix
+++ b/nix/hosts/common/default.nix
@@ -20,6 +20,19 @@
     ./programs.nix
   ];
 
+  nix = {
+    settings = {
+      auto-optimise-store = true;
+
+      experimental-features = [
+        "nix-command"
+        "flakes"
+      ];
+
+      warn-dirty = false;
+    };
+  };
+
   users.defaultUserShell = pkgs.zsh;
 
   environment.systemPackages =
diff --git a/nix/hosts/lemp11/configuration.nix b/nix/hosts/lemp11/configuration.nix
index 8ae4bdb2..616b8a19 100644
--- a/nix/hosts/lemp11/configuration.nix
+++ b/nix/hosts/lemp11/configuration.nix
@@ -48,23 +48,4 @@
   };
 
   zramSwap.enable = true;
-
-  nix = {
-    gc = {
-      automatic = true;
-      dates = "daily";
-      options = "--delete-older-than 7d";
-    };
-
-    optimise.automatic = true;
-
-    settings = {
-      auto-optimise-store = true;
-      experimental-features = [
-        "nix-command"
-        "flakes"
-      ];
-      warn-dirty = false;
-    };
-  };
 }
diff --git a/nix/hosts/t490/configuration.nix b/nix/hosts/t490/configuration.nix
index 81636500..c063abb6 100644
--- a/nix/hosts/t490/configuration.nix
+++ b/nix/hosts/t490/configuration.nix
@@ -64,27 +64,6 @@
 
   zramSwap.enable = true;
 
-  nix = {
-    gc = {
-      automatic = true;
-      dates = "daily";
-      options = "--delete-older-than 7d";
-    };
-
-    optimise.automatic = true;
-
-    settings = {
-      auto-optimise-store = true;
-
-      experimental-features = [
-        "nix-command"
-        "flakes"
-      ];
-
-      warn-dirty = false;
-    };
-  };
-
   networking.hosts = {
     "192.168.1.116" = [ "nixedo" ];
   };