diff --git a/config/shared.nix b/config/shared.nix
index 8e9023d..7ff887e 100644
--- a/config/shared.nix
+++ b/config/shared.nix
@@ -3,13 +3,14 @@
 {
   imports = [
     ./nginx.nix
-    ./pict-rs.nix
     ./modules/lnbits-service.nix
+    { _module.args = { inherit domain; }; }
+    ./pict-rs.nix
     ./lnbits.nix
   ];
 
-  # Set hostname (passed as parameter)
-  networking.hostName = domain;
+  # Set hostname (extract from domain, e.g., "4lpaca" from "4lpaca.io")
+  networking.hostName = builtins.head (pkgs.lib.splitString "." domain);
 
   # System packages
   environment.systemPackages = with pkgs; [