Settings that are common for every environment:
/sites/default/settings.php
/sites/default/services.yml
Each environment can override those settings with these files:
/sites/default/settings.local.php
/sites/default/services.local.yml
Development environments can use the predefined templates. Follow the instructions in these files:
/sites/default/tavolos.settings.local.php
/sites/default/tavolos.services.local.yml
Production environment currently uses php 7.0.30.
All code and all dependencies should support that version.
(@todo More documentation)