Hi Jorge,

In general you don't need (or cannot use) the terminal for most operations such as installers etc. There are a few solutions to get connectors and packages working though.
- If it is a Python package you can automatically get it installed by adding a requirements.txt file in the root of your Github directory.
- If you need specific files or resources available you'll need to package them within your own custom module.
- If it is a (public) repository you can add it as a submodule.

As all those modules are public Github repositories and as OCA sets up Python package requirements correctly you can simply import the modules in your Odoo.sh project.
Go to the settings page of your project and add all the repositories as submodules, they'll be added in and will be available then. This is the cleanest way to use Odoo.sh as it'll be automatically executed on every new build of your custom code.

I have two tutorials about how to use Odoo.sh (and submodules) at https://www.odoo.yenthevg.com/configuring-submodules-odoo-sh/ and at https://www.odoo.yenthevg.com/configuring-using-odoosh/

Regards,
Yenthe