might work now..

ly.sh

@@ -205,7 +205,7 @@
       return 69
     fi
 
-    cd ly || echo-error "cannot cd into ly" && exit 69
+    cd ly || echo-error "cannot cd into ly"
   }
 
   build-ly() {
@@ -248,11 +248,12 @@
         get-zig
       fi
 
-      if get-ly; then
-        if build-ly; then
-          line
-          check "Installed ly successfully!"
-        fi
+      get-ly
+      build-ly
+
+      if command_exists ly; then
+        line
+        check "Installed ly successfully!"
       fi
       ;;
     *)