Resources without primary key not supported

defmodule Scribble.EmailHandler.User do
  use Ash.Resource
  use Ash.Resource, data_layer: Ash.DataLayer.Ets

  actions do
    defaults [:create, :read]
  end

  attributes do
    uuid_primary_key :id

    attribute :email, :string, allow_nil?: false
    attribute :name, :string, allow_nil?: false
    attribute :reply_email, :string
    create_timestamp :inserted_at
    update_timestamp :updated_at
  end

  calculations do
    calculate :response_email, :string, expr(reply_email || email)
  end
end

defmodule Scribble.EmailHandler.User do
  use Ash.Resource
  use Ash.Resource, data_layer: Ash.DataLayer.Ets

  actions do
    defaults [:create, :read]
  end

  attributes do
    uuid_primary_key :id

    attribute :email, :string, allow_nil?: false
    attribute :name, :string, allow_nil?: false
    attribute :reply_email, :string
    create_timestamp :inserted_at
    update_timestamp :updated_at
  end

  calculations do
    calculate :response_email, :string, expr(reply_email || email)
  end
end