It runs on the mini but through the rPi. Using the rPi as server to Mac kstars client the internal guider works fine. I have a wired Ethernet connection so the lag for guide camera image files is not really a problem. My wording was a little ambiguous kstars and ekos run on the Mac and control everything (including auto guide). The rPi serves up the devices (mount, cameras, etc) to the Mac.
Borg 107FL, Astro-Tech AT130EDT; Rainbow Astro RST-135 SkyShed Pier; QHY600PH Chroma LRGBHa; QHY5-III-462C; IR Guiding WO Uniguide 50 & ASI290mm mini; ASUS PN51 ubuntu, kstars/ekos, & firecapture; Pegasus PPBA; Stellarvue Optimus + WO Redcat, Skyguider Pro RT90C, rPi4/stellarmate