Turbo broadcast_*_to via ActionCable

hello.html

<!-- app/views/hello.html -->
<h1>Hello!</h1>

hello_controller.rb

# app/controllers/hello_controller.rb
class HelloController < ApplicationController
  def create
    Turbo::StreamsChannel.broadcast_append_to(
      @resource.id,
      :hello,
      target: 'hello-turbo-frame',
      template: 'hello',
      layout: false
    )
  end
end

show.html.erb

<!-- app/views/resources/show.html.erb -->

<%= turbo_stream_from @resource.id, :hello %>

<turbo-frame id="hello-turbo-frame"></turbo-frame>