Rework common profile into module system

modules/smartd.nix

@@ -0,0 +1,25 @@
+{ config, lib, pkgs, ... }:
+
+{
+  options.chvp.smartd.enable = lib.mkOption {
+    default = false;
+    example = true;
+  };
+
+  config = lib.mkIf config.chvp.smartd.enable {
+    chvp.globalMailer.enable = true;
+    environment.systemPackages = [ pkgs.smartmontools ];
+    services.smartd = {
+      enable = true;
+      autodetect = true;
+      notifications = {
+        mail = {
+          enable = true;
+          sender = "${config.networking.hostName}@vanpetegem.me";
+          recipient = "webmaster@vanpetegem.me";
+        };
+        wall.enable = false;
+      };
+    };
+  };
+}