Datacolor SpyderX and Spyder5 software (the current 5.7 releases) work properly on the new M1 Macs. You can calibrate the built-in display on the laptops, as well as an external display. If you have the M1 Mini, you'll be able to calibrate one or two displays, however many you have attached. (The other actively supported Datacolor Spyder products - SpyderCheckr and SpyderPRINT - also work properly on the M1 systems).
There's one issue in Big Sur running on M1 systems only, in which the normal API inside MacOS that provides information about attached displays doesn't return the expected information. The Spyder software works around this by catching the problem and simply providing an initial naming of "UNKNOWN-X" (with 1 and 2 appended, to signify either the main or secondary display). You can leave that as-is or, you can type over it with anything that you like. Otherwise, all functionality works as expected and calibration proceeds as normal. (Hopefully this gets fixed in a future version of Big Sur on the M1)
(Calibrating displays on other systems, and moving the display profiles over to an M1, isn't going to work reliably - I'd recommend against it :-)
David M.
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