Incorrect (missing labels and announcements):

// app/components/form.gjs
<template>
  <form {{on "submit" this.handleSubmit}}>
    <input type="email" value={{this.email}} {{on "input" this.updateEmail}} placeholder="Email" />

    {{#if this.emailError}}
      <span>{{this.emailError}}</span>
    {{/if}}

    <button type="submit">Submit</button>
  </form>
</template>