manatee: Add komga module

hosts/manatee/modules/komga/default.nix

@@ -0,0 +1,28 @@
+{ lib, config, ... }:
+let
+  enabled = config.mod.komga.enable;
+in
+{
+  options = {
+    mod.komga = {
+      enable = lib.mkEnableOption "Enable komga module";
+    };
+  };
+
+  config = lib.mkIf enabled {
+    users.users.komga = {
+      isSystemUser = true;
+      group = "storage";
+    };
+
+    services.komga = {
+      enable = true;
+
+      user = "komga";
+      group = "storage";
+
+      settings.server.port = 8002;
+      openFirewall = true;
+    };
+  };
+}