location /media/ {
        alias /opt/pretalx/data/media/;
        add_header Content-Disposition 'attachment; filename="$1"';
        expires 7d;
        access_log off;
    }

    location /static/ {
        alias /opt/pretalx/static/;
        access_log off;
        expires 365d;
        add_header Cache-Control "public";
    }