Use iMac as a monitor for a mini?
I have a 2019 27" iMac. It works fine, no problems, but I haven't updated the OS for a while (Cataline 10.15.7 because I don't like the newer UIs since then, but never mind that.)
I'd get another iMac but there's no 27" version and I need the larger screen.
So, I'm thinking of getting a Mini (not necessarily the newest one, but maybe) and I'm wondering if there's a way to use the old iMac as a monitor for the Mini? There apparently is an HDMI port on both of them. Is that the key to making this work? Years ago you could connect a mac to another one as an external HD, so I'm guessing there's a way to do this, but it seems like a good idea to check with you folks first.
I'd rather not have to spring for a Studio monitor, so if this isn't doable I'll probably get some other monitor instead.
iMac (2017 – 2020)