diff --git a/lib/apps.nix b/lib/apps.nix
index 1d7c991..5599a4f 100644
--- a/lib/apps.nix
+++ b/lib/apps.nix
@@ -1,14 +1,4 @@
 pkgs:
-let
-  qemu-opts = builtins.concatStringsSep " " [
-    "${pkgs.qemu_kvm}/bin/qemu-kvm"
-    "-cpu host"
-    "-usbdevice tablet"
-    "-smp cores=4"
-    "-m 4096"
-  ];
-
-in
 builtins.mapAttrs
   (n: v: {
     type = "app";
@@ -20,11 +10,13 @@ builtins.mapAttrs
     exec $jupy/bin/python -m jupyterlab "$@"
   '';
 
-  qemu-bios = ''
-    exec ${qemu-opts} "$@"
-  '';
-
-  qemu-uefi = ''
-    exec ${qemu-opts} -bios ${pkgs.OVMF.fd}/FV/OVMF.fd "$@"
-  '';
+  qemu = toString [
+    "exec ${pkgs.qemu_kvm}/bin/qemu-kvm"
+    "-cpu host"
+    "-usbdevice tablet"
+    "-smp cores=4"
+    "-m 4096"
+    "-bios ${pkgs.OVMF.fd}/FV/OVMF.fd"
+    "\"$@\""
+  ];
 }