Just created a new repo on a new account and see no Custom Types.
For now, we have only moved the Custom Type builder locally so that users can take advantage of Slice Machine and this also separates concerns as any changes in Custom Types will always be reflected in project code, so it makes sense that these changes live and can be versioned together.
Content changes still and always will live at primic.io. So while you the developer make coding and modeling changes in the project code, content creators will only need to login into Prismic to view and edit content.
If you want to re-enable the legacy Custom Type builder, you can do so in your repository settings as shown in the following screenshot.
Let me know if you have any other questions.
A post was split to a new topic: Why is the legacy builder deprecated?