Hi guys!
In the __manifest__.py there is a section to define dependencies: 
https://www.odoo.com/documentation/13.0/reference/module.html
depends(list(str))
- Odoo modules which must be loaded before this one, either because this module uses features they create or because it alters resources they define. - When a module is installed, all of its dependencies are installed before it. Likewise dependencies are loaded before a module is loaded. - I have a module that needs to be installed after some other modules, but only if they are present, and not fail if they are not. - This is some kind of optional dependency: If the optional modules specified in the list are present, then Odoo would take them as dependencies and therefore install them first ; if they are not then no big deal, the module would continue with using the depends list. - Is there such a feature in Odoo? 
