fix(nixos): greetd & systemd issue

See apognu/tuigreet#68

machines/linux-shared.nix

@@ -148,6 +148,18 @@
     };
   };
 
+  # Fix Systemd message & tuigreet issue https://github.com/apognu/tuigreet/issues/68
+  systemd.services.greetd.serviceConfig = {
+    Type = "idle";
+    StandardInput = "tty";
+    StandardOutput = "tty";
+    StandardError = "journal"; # Without this errors will spam on screen
+    # Without these bootlogs will spam on screen
+    TTYReset = true;
+    TTYVHangup = true;
+    TTYVTDisallocate = true;
+  };
+
   # This value determines the NixOS release from which the default
   # settings for stateful data, like file locations and database versions
   # on your system were taken. It‘s perfectly fine and recommended to leave