only use opensuse repo if running debian version less than 11

install.sh

@@ -15,18 +15,20 @@ if [[ $distro == "Debian" ]]; then
 	release=Testing
     else
 	echo "Error: failed to detect release"
-	exit 1
+	exit 2
     fi
+    
     echo "Installing podman ..."
+    if [[ $release != "testing" && $release -lt 11 ]]; then
 	sudo apt install -y gnupg curl
 	echo "deb https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/Debian_${release:?}/ /" | sudo tee /etc/apt/sources.list.d/podman.list
 	curl -L https://download.opensuse.org/repositories/devel:/kubic:/libcontainers:/stable/Debian_${release:?}/Release.key | sudo apt-key add -
-
+    fi
     sudo apt update -y
     sudo apt install -y fuse-overlayfs slirp4netns podman
 else
     echo "Error: failed to detect distro."
-    exit 1
+    exit 2
 fi
 
 echo "Copying scripts to /usr/local/bin ..."