I run your script in an opi5 with m.2 ssd for the system and data. My rig comprises nikon camera, az-eq5 mount and sv305 guide camera. All working fine. I'm willing to install an wifi usb adapter in order to connect from phone to monitor kstars.
I see that the opi5 manual indicates three adapter but I'm not sure if they support AP mode. Have you had success enabling AP in some wifi adapter worth being recommended.