Mac Mini Late 2012
i7-3615QM, 4 core (8 thread) at 2,3 Ghz
Intel HD Graphics 4000
16GB 1600Mhz DDR3
Dell U2715H 2560x1440, 60Hz
Took all the steps described in the Purge-Wrangler installation guide, encountered no problems whatsoever (so much thanks to the makers!!)
Legacy AMD disabled
TB1/2 AMD eGPUs Enabled
NVIDIA eGPUs Disabled
Ti82 Devices Disabled
Installing the GPU in the Razer Core is childs play.
Hooked the TB2 cable to the Mac, the TB3->TB1/2 adapter to the Razer, and linked the monitor up with a DisplayPort cable.
First time hooked up the Mac directly to the monitor with a HDMI cable, started the Razer and it immediately was picked up by the system. Switched the monitor to the DisplayPort et voila, glorious pictures
(Only thing I'm not really sure about is the order in which to shut down the system, and how to start it up. For now I use the HDMI connection to start up the Mac, then switch to DP for the Razer.)
None really, this whole process was so easy, and gives this old Mac a second life.