In this short podcast, Crayton discusses the fit-Headless, a small HDMI adapter that when connected to a Mac Mini emulates a high resolution display.
This adapter can address some problems that VoiceOver users may experience when trying to using a Mac Mini without a display; the most notable one being that VoiceOver itself can be less responsive.
Three variants of the fit-Headless are available to purchase from the manufacturer's website, with prices starting from US$10.