Android & iOS C++ development content pipeline

How can I setup a pipeline to develop a mobile game for Android & iOS using Cocos2dx C++, macOS for development, with a remote artist?

Ideally the artist should not have to worry about setting up a development environment in order to load and test their art assets in the game. They should use the tools their comfortable with, without having to learn how to pull the latest source, then build and run the game on a mobile device.

Any ideas?

I’ve thought of maybe downloading the art assets at runtime so that the artist can just upload the latest revision and then run the game to see them in action, then for production build them in instead of downloading them.