Business opportunity! Create build server for iOS developers

I have a need that most iOS developer teams have. We need a build server, which can take code from GitHub compile it and send it to testers via TestFlight. The whole process will be automatic. This means that the build server will monitor the GitHub repository and start compiling the next version once a new commit has been pushed. In a matter of seconds (or minutes) the new version of the app will be available via TestFlight for testing. I will pay for renting a cloud server (the cheapest service I have found was 30$ per month [login to view URL]). After you have created this service for me, you are free to sell it to other companies. I just want a 10$ price reduction for the server for each extra customer using the server so that I will get it for free once you have three additional customers. You also owe me a beer once you have earned your first 100.000$. ;) To do this task, you can simply follow this tutorial, which should cover most of it: [login to view URL] You can read a bit further about build servers here: [login to view URL] If you want to assess the business opportunity in this, please try searching for "rent build server" or "rent continuous integration server", etc. I, at least, found nothing.