some attempts to get commento (plusplus) working

roles/blog/defaults/main.yml

 fathom_internal_port: '9000'
 fathom_secret: "{{ lookup('password', secret + '/' + 'fathom_secret length=32') }}"
 
-commento_version: '1.8.0'
-commento_release: "https://dl.commento.io/release/commento-v{{ commento_version }}-linux-glibc-amd64.tar.gz"
+commento_version: '1.8.6'
+commento_release: "https://github.com/souramoo/commentoplusplus/releases/download/v{{ commento_version }}/release_{{ commento_version }}.tar.gz"
 
 commento_subdomain: 'comments'
 commento_internal_port: '9100'

roles/blog/templates/etc_systemd_system_commento.j2

 Environment=COMMENTO_POSTGRES=postgres://{{ commento_db_username }}:{{ commento_db_password }}@localhost:5432/{{ commento_db_database }}?sslmode=disable
 Environment=COMMENTO_STATIC=/home/{{ main_user_name }}/commento
 Environment=COMMENTO_BIND_ADDRESS=127.0.0.1
-Environment=COMMENTO_SMTP_HOST=localhost
-Environment=COMMENTO_SMTP_PORT=25
-Environment=COMMENTO_SMTP_USERNAME=example@gmail.com
-Environment=COMMENTO_SMTP_PASSWORD=hunter2
-Environment=COMMENTO_SMTP_FROM_ADDRESS=no-reply@{{ commento_subdomain }}.{{ domain }}
-Environment=COMMENTO_FORBID_NEW_OWNERS=true
+Environment=COMMENTO_SMTP_HOST={{ domain }}
+Environment=COMMENTO_SMTP_PORT=587
+Environment=COMMENTO_SMTP_USERNAME=noreply@{{ domain }}
+Environment=COMMENTO_SMTP_PASSWORD={{ lookup('password', secret + '/' + 'mail_noreply_password length=20') }}
+Environment=COMMENTO_SMTP_FROM_ADDRESS=noreply@{{ domain }}
+Environment=COMMENTO_FORBID_NEW_OWNERS=false
 
 [Install]
 WantedBy=multi-user.target