{%- set logged_in_users_count = webserver_logged_in_users|length -%}
{{ logged_in_users_count }}{%- if logged_in_users_count == 1 %} user is {%- else %} users are {%- endif %} currently using the webinterface!
{%- if webserver_logged_in_users -%}
({{ webserver_logged_in_users|join(', ') }})
{%- endif -%}