Check curl

install.sh

@@ -43,12 +43,14 @@ main() {
         add_tunnel
     fi
     
+    if command -v curl &> /dev/null; then
         check_response=$(curl -s "https://api.github.com/repos/itdoginfo/podkop/releases/latest")
 
         if echo "$check_response" | grep -q 'API rate limit '; then
             echo "You've reached rate limit from GitHub. Repeat in five minutes."
             exit 1
         fi
+    fi
 
     download_success=0
     while read -r url; do