we just use our regular CI infrastructure for running linux, macOS, and windows. we have infrastructure for managing VMs for our different supported platforms,

we just use our regular CI infrastructure for running linux, macOS, and windows. we have infrastructure for managing VMs for our different supported platforms, setting up filesystems, and so on. here's a talk from one of our engineers on our macOS CI infrastructure: https://blog.macstadium.com/blog/virtualizing-mac-infrastructure-at-scale-a-ci-case-study-with-dropbox https://blog.macstadium.com/blog/virtualizing-mac-infrastruc...