common hosts file

nix/hosts/common.nix

@@ -0,0 +1,21 @@
+{lib,config,pkgs, ...}: {
+  nix = {
+    settings = {
+      experimental-features = "nix-command flakes";
+      auto-optimise-store = true;
+      flake-registry = "";
+    };
+    channel.enable = false;
+    optimise = {
+      automatic = true;
+      dates = ["03:45"];
+    };
+    gc = {
+      automatic = true;
+      dates = "19:00";
+      persistent = true;
+      options = "--delete-older-than 60d";
+    };
+  };
+  time.timeZone = "America/Toronto";
+}