Can I use my late 2012 iMac as a monitor for my mid 2011 mini?

[DanMR]

I have a late 2012 27" i7 iMac that I use as my main computer that I would like to update to Catalina eventually once I upgrade from a fusion drive to SSD. I have a mid 2011 mac mini that I would like to keep around to run old 32 bit programs on but I don't have room for two monitors. Can I use my iMac as a monitor when using the mid 2011 Mac Mini?

 

[MevetS]

Take a look at Luna Display. The ability to use one Mac as the display for another was recently added.

 

[yesornofei]

I think you can, but with no guarantee:

FAQ: Can I use my existing iMac as a display for a new 2018 Mac mini?

I’ve been seeing this question asked a lot following the launch of the 2018 Mac mini, so I decided to create this thread to help answer it. iMac (27-inch, Late 2009) iMac (27-inch, Mid 2010) Will it work: Yes What you need: USB-C to Mini DisplayPort adapter and Mini DisplayPort to Mini...

forums.macrumors.com

you can use one thunderbolt cable(tb1 or tb2, NOT tb3 and NOT mini Displayport cable) to connect the two machines and press iMac's Command + F2 to use the iMac as the monitor of the mini