Currently, Giger only maintains the integration with Formik in @shipengine/formik-giger package.
If you use react-hook-form we suggest you to use your own integration.
Bindings for using packlink-forms[https://github.com/packlink-dev/phaviour/tree/master/packages/packlink-forms] with Giger[https://github.com/shipengine/giger].
Check stories/ to check how to integrate this package in your application.