There is an aphlict container running for all Phabricator instances hosted on the Nasqueron PaaS, so I guess it's only a matter of upgrade Phabricator + configure it (the config format has changed recently, so let's upgrade it first to avoid to have to reconfigure it in the future).

nginx configuration is already ready: https://github.com/nasqueron/operations/blob/main/roles/paas-docker/nginx/files/vhosts/phabricator.conf#L51

It's live: https://phabricator.wolfplex.org/ws/