Individual developers develop on Mac hardware. They do primary tests on Mac mobile devices.

For production and QA, our CI pipeline builds on a cluster of bare metal Mac Minis. Basic unit tests happen during the build. We deploy to mobile devices.

Mac doesn’t make any server equipment anymore, We could technically run VMs on the minis. But they’re not so expensive that we can’t just have a cluster of them around. We even tried to do the hackintosh route with VMs. It was incredibly difficult to keep it stable, and every time we had to do a xcode update, It needed an OS update and it fucked over the hackintosh. I would have had to keep somebody on staff full-time just to keep the hackintosh VMs going.