{% for name, versions in runtime_versions -%}
  {%- if versions -%}
    {%- if versions[0] != versions|last -%}
      {{ name }} {{ versions[0] }} - {{ versions|last }}
    {%- else -%}
      {{ name }} {{ versions[0] }}
    {%- endif -%}
  {%- else -%}
    {{ name }}
  {%- endif -%}
  {%- if not loop.last %}, {% endif -%}
{%- endfor -%}