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 on RST-135, Astro-Tech AT130EDT on GM1000HPS; SkyShed Pier; QHY600PH Chroma LRGBHSO; 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