[user module] forgot to set ssh-keys for admin user, use /etc/ssh/hostname as server ssh key

machines/modules/malobeo/users.nix

@@ -2,6 +2,7 @@
 let 
   cfg = config.malobeo.users;
   sshKeys = import ( inputs.self + /machines/ssh_keys.nix);
+  inherit (config.networking) hostName; 
 in
 {
   options.malobeo.users = {
@@ -32,6 +33,7 @@ in
         isNormalUser = true;
         description = "admin user, passwordless sudo access, only ssh";
         hashedPassword = null;
+        openssh.authorizedKeys.keys = sshKeys.admins;
         extraGroups = [ "networkmanager" ];
       };
       environment.systemPackages = with pkgs; [];
@@ -50,6 +52,7 @@ in
     })
     {
       users.mutableUsers = false;
+      services.openssh.hostKeys = [{ path = "/etc/ssh/${hostName}"; type = "ssh-ed25519"; }];
       environment.systemPackages = with pkgs; [
         nix-output-monitor
         vim