kawari/templates/admin.html

<p>Gate open:{{ worlds_open }}</p>
<p>Gate open:{{ login_open }}</p>
<form action='apply' method='post'>
    <input type='checkbox' id='worlds_open' name='worlds_open' checked/>
    <input type='checkbox' id='login_open' name='login_open' checked/>
    <button type='submit'>Apply</button>
</form>