Kick out super early if it's not a suitable system

Untested, but raised after a frustrating morning :D

newinstaller.sh

@@ -5,6 +5,15 @@ if [ "$EUID" == 0 ]
   exit
 fi
 
+if [ "$(uname -m)" != "aarch64" ];then
+  echo "BirdNET-Pi requires a 64-bit OS.
+It looks like your operating system is using $(uname -m),
+but would need to be aarch64.
+Please take a look at https://birdnetwiki.pmcgui.xyz for more
+information"
+  exit 1
+fi
+
 # Simple new installer
 HOME=$HOME
 USER=$USER