Is it possible to connect sky safari directly to an Rpi4 with its WiFi and control the mount? I’m wondering if buying the WiFi adaptor for my CGEM is necessary?
Yes it is possible. Select SkySafari as auxiliary driver and select LX200 in SkySafari. When starting Ekos you need to note the ip address and port for the SkySafari driver and make sure that SkySafari uses those to connect to INDI. No additional hardware needed.