diff --git a/profiles/sway/autostart.nix b/profiles/sway/autostart.nix
index bf814f5..494fc81 100644
--- a/profiles/sway/autostart.nix
+++ b/profiles/sway/autostart.nix
@@ -8,9 +8,12 @@ in
   };
 
   config = lib.mkIf cfg.enable {
-    services.displayManager.lemurs = {
-      enable = true;
-      settings.environment_switcher.include_tty_shell = true;
-    };
+
+    # start sway if login happens
+    environment.interactiveShellInit = ''
+      if test `tty` = /dev/tty1; then
+        exec sway
+      fi
+    '';
   };
 }
diff --git a/profiles/usb-iso/default.nix b/profiles/usb-iso/default.nix
index b5054eb..2ce961a 100644
--- a/profiles/usb-iso/default.nix
+++ b/profiles/usb-iso/default.nix
@@ -15,7 +15,7 @@ in
   config = lib.mkIf cfg.enable {
     # binary blobs are needed for ventoy
     nixpkgs.config.permittedInsecurePackages = [
-      "ventoy-${pkgs.ventoy.version}"
+      "ventoy-1.1.07"
     ];
     environment.systemPackages = with pkgs; [
       ventoy-full # general