Customers can use fastlane and fastlane Match on Bitrise to manage code signing for multiple apps at scale. fastlane Match is a tool that allows developers to securely store their signing certificates and provisioning profiles in a Git repository, and to automatically download the latest versions of these files when building and releasing apps. With the Fastlane Match Step, Bitrise takes care of the code signing process for you, by cloning your private certificate/profile repository and registering those certificates and profiles in the keychain. fastlane Match supports different storage options such as Google Cloud Storage and Amazon S3, allowing developers to securely store their signing assets in a shared repository like GitHub. To set up fastlane Match, developers need to create a new lane in their Fastfile that uses the match action, specify the type of signing assets they want to create or maintain, and use the match command to import existing certificates and profiles or generate new ones. When using fastlane Match on Bitrise, developers can add the Fastlane Match step to their workflow before building their app, configure the step with their Git URL, branch, App ID, Match Password, Platform, and Team ID, and run their build to ensure that code signing works correctly.