Setting up GitLab CI for iOS projects

This post details the initial setup of GitLab CI for iOS projects, focusing on configuring Xcode projects, sharing schemes, installing xcpretty, and registering a GitLab Runner with specific tags. It outlines the creation of a `.gitlab-ci.yml` file to automate the build and test process using `xcodebuild` commands and specifies the use of the 'shell' executor for the runner. The post also provides guidance on selecting the destination simulator and OS version for testing.