It's a Mac mini M1 that will be mostly dedicated with a USB3 connected mirrored NAS. I have 8 wired cameras on a NVR and may add 3 or 4 wifi cameras using a separate wireless router. High res is the way to go with 4K cams. It makes PTZ obsolete. Looking forward to dumping the NVR.
I found and installed a software called Security Spy that has huge capabilities with iPhone and appletv apps. I like it!