/usr/local/etc/php-fpm.d/www.conf.default (without comments)
[www] user = app group = app listen = 127.0.0.1:9000 pm = dynamic pm.max_children = 5 pm.start_servers = 2 pm.min_spare_servers = 1 pm.max_spare_servers = 3
To add: security.limit_extensions = <empty string>, so we can let php-fpm handle the beautified URL.