I recently posted an „Ask HN“ asking for a flexible CI system. Most of the suggestions were proprietary hosted SaaS solutions. I was sceptical, and things like that keep me sceptical. Sure, setting up a CI system yourself is maybe a bit harder than using a hosted solution. But if the provider decides to change their offering, you are in big trouble. You‘ll need to spend a lot of time switching to a new sevice, migrat…
I’ve been using drone, which is open source. It’s the only CI tool I’ve found writing pipelines in to not be painful. Need a test DB? The syntax is just docker compose so you already know how to get yourself one.
The thing about BuddyBuild was that it was "iOS Specific". You could point it at a repo and you would have your project building, signed and ready to install, in minutes. This was pretty unheard of. And still is. Trying to get iOS projects to build and sign on generic CI services like Travis, Circle or Drone means hours of pain to get it going and to keep it going. Been there done that.