So it can still be a bit difficult to discover, but the overrides for each individual component are documented in the module for that component: AshAuthentication.Phoenix.Components.Banner — ash_authentication_phoenix v2.17.1

The idea is that you can use the builtin UIs to get off the ground, but at a certain point of customization you’ll need to roll your own and call the relevant actions. Here is a guide from Alembic’s blog about customizing ash authentication more thoroughly. Customising Ash Authentication with Phoenix LiveView

That was my first point of reference. But it falls short in the very last section:

Bildschirmfoto 2024-01-17 um 13.58.061504×654 44.6 KB

Where do I have to add this code? No file name is given.

I think it’s just pointing out an important bit from the first file listed above.

I override in the router

    sign_in_route(
      register_path: "/register",
      reset_path: "/reset",
      overrides: [
        App.Auth.Overrides,
        AshAuthentication.Phoenix.Overrides.Default
      ],
      on_mount: [{AppWeb.LiveUserAuth, :live_no_user}]
    )

App.Auth.Overrides contains my overrides, if the definition isn’t there it falls back to Default

This is what Overrides looks like:

defmodule App.Auth.Overrides do
  use AshAuthentication.Phoenix.Overrides
  alias AshAuthentication.Phoenix.{Components, ResetLive, SignInLive}

  override SignInLive do
    set :root_class, "grid h-screen place-items-center bg-brand dark:bg-brand"
  end

  override ResetLive do
    set :root_class, "grid h-screen place-items-center dark:bg-gray-900"
  end

  override Components.Reset do
    set :root_class, """
    flex-1 flex flex-col justify-center py-12 px-4 sm:px-6 lg:flex-none
    lg:px-20 xl:px-24
    """

    set :strategy_class, "mx-auth w-full max-w-sm lg:w-96"
  end

  override Components.Reset.Form do
    set :root_class, nil

    set :label_class,
        "mt-2 mb-4 text-2xl tracking-tight font-bold text-gray-900 dark:text-gray-900"

    set :form_class, nil
    set :spacer_class, "py-1"
    set :disable_button_text, "Changing password ..."
  end

  override Components.SignIn do
    set :root_class, """
    flex-1 flex flex-col justify-center py-12 px-4 sm:px-6 lg:flex-none
    lg:px-20 xl:px-24
    """

    set :strategy_class, "mx-auth w-full max-w-sm lg:w-96"

    set :authentication_error_container_class, "text-black dark:text-black text-center"
    set :authentication_error_text_class, ""
  end

  override Components.Banner do
    set :root_class, "w-full flex justify-center py-2"
    set :href_class, nil
    set :href_url, "/"
    set :image_class, "block dark:hidden h-12 w-auto sm:h-14"
    set :dark_image_class, "hidden dark:block h-12 w-auto sm:h-14"

    set :image_url,
        "https://static.wixstatic.com/media/62aad1_b2a9245d61f34d33b0228a94fdac9b8d~mv2.png/v1/fill/w_114,h_114,al_c,q_85,usm_0.66_1.00_0.01,enc_auto/white.png"

    set :dark_image_url,
        "https://static.wixstatic.com/media/62aad1_b2a9245d61f34d33b0228a94fdac9b8d~mv2.png/v1/fill/w_114,h_114,al_c,q_85,usm_0.66_1.00_0.01,enc_auto/white.png"

    set :text_class, nil
    set :text, nil
  end

  override Components.HorizontalRule do
    set :root_class, "relative my-2"
    set :hr_outer_class, "absolute inset-0 flex items-center"
    set :hr_inner_class, "w-full border-t border-gray-300 dark:border-gray-700"
    set :text_outer_class, "relative flex justify-center text-sm"

    set :text_inner_class,
        "px-2 bg-white text-gray-400 font-medium dark:bg-gray-900 dark:text-gray-500"

    set :text, "or"
  end

  override Components.MagicLink do
    set :root_class, "mt-4 mb-4"

    set :label_class,
        "mt-2 mb-4 text-2xl tracking-tight font-bold text-gray-900 dark:text-gray-900"

    set :form_class, nil

    set :request_flash_text,
        "If this user exists in our database you will contacted with a sign-in link shortly."

    set :disable_button_text, "Requesting ..."
  end

  override Components.Password do
    set :root_class, "mt-4 mb-4"
    set :interstitial_class, "flex flex-row justify-between content-between text-sm font-medium"
    set :toggler_class, "flex-none text-zinc-100 hover:text-zinc-200 px-2 first:pl-0 last:pr-0"
    set :sign_in_toggle_text, "Already have an account?"
    set :register_toggle_text, "Need an account?"
    set :reset_toggle_text, "Forgot your password?"
    set :show_first, :sign_in
    set :hide_class, "hidden"
  end

  override Components.Password.SignInForm do
    set :root_class, nil
    set :label_class, "mt-2 mb-4 text-2xl tracking-tight font-bold text-gray-900 dark:text-white"
    set :form_class, nil
    set :slot_class, "my-4"
    set :disable_button_text, "Signing in ..."
  end

  override Components.Password.RegisterForm do
    set :root_class, nil
    set :label_class, "mt-2 mb-4 text-2xl tracking-tight font-bold text-gray-900 dark:text-white"
    set :form_class, nil
    set :slot_class, "my-4"
    set :disable_button_text, "Registering ..."
  end

  override Components.Password.ResetForm do
    set :root_class, nil
    set :label_class, "mt-2 mb-4 text-2xl tracking-tight font-bold text-gray-900 dark:text-white"
    set :form_class, nil
    set :slot_class, "my-4"

    set :reset_flash_text,
        "If this user exists in our system, you will be contacted with reset instructions shortly."

    set :disable_button_text, "Requesting ..."
  end

  override Components.Password.Input do
    set :field_class, "mt-2 mb-2 dark:text-white"
    set :label_class, "block text-sm font-medium text-white mb-1 dark:text-white"

    set :input_class, """
    appearance-none block w-full px-3 py-4 border border-gray-300 rounded-md
    shadow-sm placeholder-gray-400 focus:outline-none focus:ring-slate-pale-500
    focus:border-slate-pale-500 text-lg font-medium
    text-slate-950
    dark:text-slate-950
    """

    set :input_class_with_error, """
    appearance-none block w-full px-3 py-2 border border-gray-300 rounded-md
    shadow-sm placeholder-gray-400 focus:outline-none border-red-400 sm:text-sm
    dark:text-black
    """

    set :submit_class, """
    w-full flex justify-center py-2 px-4 border border-transparent rounded-md
    shadow-sm text-md font-semibold text-white bg-slate-600 hover:bg-slate-700
    focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-slate-300
    mt-4 mb-4
    """

    set :error_ul, "text-red-400 font-light my-3 italic text-sm"
    set :error_li, nil
    set :input_debounce, 350
  end

  override Components.OAuth2 do
    set :root_class, "w-full mt-2 mb-4"

    set :link_class, """
    w-full flex justify-center py-2 px-4 border border-transparent rounded-md
    shadow-sm text-sm font-medium text-black bg-gray-200 hover:bg-gray-300
    focus:outline-none focus:ring-2 focus:ring-offset-2 focus:ring-slate-600
    inline-flex items-center
    """

    set :icon_class, "-ml-0.4 mr-2 h-4 w-4"
  end
end

I think I just copied the defaults file found here and started editing in my override file: ash_authentication_phoenix/lib/ash_authentication_phoenix/overrides/default.ex at main · team-alembic/ash_authentication_phoenix · GitHub