diff --git a/qemu/launchers/kvm b/qemu/launchers/kvm
index 7c63a12..3f3a84c 100755
--- a/qemu/launchers/kvm
+++ b/qemu/launchers/kvm
@@ -1,22 +1,18 @@
 #!/usr/bin/env sh
 # What processor architecture to use
-arch=$QEMUSH_ARCH
-[ -z "$arch" ] && arch=$(uname -m)
+[ -z "$QEMUSH_ARCH" ] && QEMUSH_ARCH=$(uname -m)
 
 # How many CPU cores to use
-nproc=$QEMUSH_NPROC
-[ -z "$nproc" ] && nproc=$(($(nproc) / 2))
+[ -z "$QEMUSH_NPROC" ] && QEMUSH_NPROC=$(($(nproc) / 2))
 
 # How much RAM to use
-ram=$QEMUSH_RAM
-[ -z "$ram" ] && ram=$(($(free | grep '^Mem:\s' | awk '{ print $NF }') / 2))K
+[ -z "$QEMUSH_RAM" ] && QEMUSH_RAM=$(($(free | grep '^Mem:\s' | awk '{ print $NF }') / 2))K
 
 # Set the arguments
-set -- "qemu-system-${arch}" \
+set -- "qemu-system-${QEMUSH_ARCH}" \
     -enable-kvm \
-    -M q35 \
-    -cpu host -smp "$nproc" \
-    -m "$ram" \
+    -cpu host -smp "$QEMUSH_NPROC" \
+    -m "$QEMUSH_RAM" \
     "$@"
 
 # Start the machine