Unfortunately Fastlane doesn’t work on Windows yet.
Some of its internal dependencies, specifically the way it starts and handles processes, only work on Mac OS and Linux systems. There are workarounds and alternatives for the specific libraries Fatlane uses, but implementing them would mean a major refactoring of Fastlane. Because of this its maintainers are rightfully hesitant to tackle this problem.
As a Windows user myself I really want to change that and use Fastlane on Windows as well.
Theoretically it could be possible to a) develop a small CLI that can be installed on Windows and enables usage of fastlane by executing the actual Fastlane on Mac machines in the cloud. Or b) some of the functionality that doesn’t require actual Mac software (like Xcode) could maybe be ported in a way that also works on Microsoft Windows.
Are you interested? Please submit your email address to this special mailing list so I can contact you:
Are you really interested and want to discuss this now with me? Email me at [email protected] with the subject “Fastlane and Windows”.