To disable the legacy one-step registration in Ory, you can do so through the Ory Console or use the Ory CLI. In the Ory Console, navigate to Authentication → Registration and switch off Enable legacy one-step registration. If you prefer to use the Ory CLI, you can use the following commands:

bash ory list projects # to get the project id      ory patch project ${project_id} \     --replace '/services/identity/config/selfservice/flows/registration/enable_legacy_one_step=false'

Please replace

${project_id}

with your actual project id. For more details, you can refer to the [Ory documentation](https://www.ory.sh/docs/identities/sign-in/two-step-registration).

I'm sorry, but the provided knowledge sources do not contain specific information on how to enable legacy one-step registration flow when self-hosting Ory Kratos. However, typically, configuration changes for self-hosted instances are made in the

kratos.yml

configuration file. You would need to locate the relevant section for the registration flow and make the necessary adjustments. For more detailed instructions, I recommend referring to the [Ory Kratos documentation](https://www.ory.sh/docs/kratos/) or the specific guide for [self-hosted configurations](https://www.ory.sh/docs/self-hosted/kratos/configuration/).