Support building a repository twice with different settings


We have a repository containing an API server in Python, a website
built with gulp and friends, and an Ionic/Cordova app that wraps the
site on iOS. Pretty much everything except the Ionic build is better
done on Linux. We can push to two repositories, but we’d rather be
able to build the same repository twice, once on OS X and once on


Looks like someone else has had a similar problem: How to use circleci for linux, xcode, ... in one project? .