The Swift Package Manager allows you to create standalone Swift applications both on Linux and macOS. You can build and run these apps and you have the ability to write unit tests for your codebase. Xcode ships with the XCTest framework, but you may not know that this is an open-source library. It's available on every single platform where you can install Swift.

Writing tests is an underappreciated part of software development. It usually distracts us from our primary goal and makes us feel we aren’t being productive. However, these tests are a great way to ensure our code works as expected, and they can save us plenty of headaches when we don’t have full control of certain parts of a project (for example, when we are working on the client app and another colleague is working on the server).

Mobile DevOps is more than simply adopting a new set of tools and practices: it also comes with the need to adopt a completely different mindset, in the form of a cultural-organizational change. The approach is based on the Agile methodology, but takes its practices further: not only by getting other teams more involved, but by replacing function-based teams with product-, and project-oriented teams as well.