installer: arm64 macos version, glibc 2.31

install-gyb.sh

@@ -28,7 +28,7 @@ upgrade_only=false
 gybversion="latest"
 adminuser=""
 regularuser=""
-glibc_vers="2.35"
+glibc_vers="2.31"
 
 while getopts "hd:a:o:b:lp:u:r:v:" OPTION
 do
@@ -124,7 +124,7 @@ case $myos in
     echo_green "You are running MacOS ${this_macos_ver} on ${myarch}"
     case $myarch in
       x86_64) gybfile="macos-x86_64.tar.xz";;
-      arm64|aarch64) gybfile="macos-x86_64.tar.xz";; # TODO update once arm64 builds exist
+      arm64|aarch64) gybfile="macos-aarch64.tar.xz";;
       *)
         echo_red "ERROR: this installer currently suppports x86_64 and aarch64 architectures. Looks like you're running on $myarch. Exiting"
 	exit