I'm sorry, but the provided extracts do not contain specific information on integrating Kratos and Hydra. However, they do provide some general information on how to work with these tools individually. For Kratos, there are guides on how to integrate a custom user interface, with both [basic](https://www.ory.sh/docs/kratos/bring-your-own-ui/custom-ui-basic-integration) and [advanced](https://www.ory.sh/docs/kratos/bring-your-own-ui/custom-ui-advanced-integration) topics covered. There are also [reference implementations and examples](https://www.ory.sh/docs/kratos/bring-your-own-ui/configure-ory-to-use-your-ui#reference-implementations-and-examples) available to help you build your own user interface on top of Ory's APIs. For Hydra, there is a guide on how to [deploy Hydra to production](https://www.ory.sh/docs/hydra/self-hosted/deploy-hydra-example#next-steps), which includes steps like preparing for production and building a custom UI. For more specific information on integrating Kratos and Hydra, I would recommend checking the official Ory documentation or reaching out to the Ory community for assistance.