update builder method and use in index

src/index.ts

@@ -42,7 +42,7 @@ async function main() {
   } else {
     systems = await Promise.all(supportedSystems.map(
       async (systemArguments) => {
-        return InterchangeSystem.buildForTesting(systemArguments);
+        return await InterchangeSystem.build(systemArguments);
       },
     ));
   }