Enable iOS project under Ubuntu


I have a repository which contains code for iOS. My repository is then considered as an iOS project by CircleCI BUT in fact, I am not intending to build an app with the CI.

This is a reference app for people to see the code and how it is made and there is no point of building it. I actually wanted to put it on the CI to be able to trigger it from another repository and update a dependency inside. This does not need a MacOS to do so, it is basically a cURL and a copy/paste but I am not able to trigger the build on an Ubuntu.

Could someone help me with that?

Thanks in advance,