foundryvtt-reve-de-dragon/templates/settings/regles-optionnelles.hbs

<form autocomplete="off" onsubmit="event.preventDefault();">
  {{#each groups as |group key|}}
  <h3>{{key}}</h3>
  <ul>
    {{#each group as |regle r|}}
    <li>
      <input class="select-option" type="checkbox" name="{{regle.id}}" {{#if regle.active}}checked{{/if}}/>
      <label>{{regle.descr}}</label>
    </li>
    {{/each}}
  </ul>
  {{/each}}
</form>