After upgrading my MacBook to macOS Catalina, WINE stopped working, because 32-bit applications were no longer permitted to run. I had been using WINE to run the Windows IRIS program for image processing and DSLR photometry as part of my minimalist approach.
After my father died in January this year, his older MacBook was passed on to me. It still has Yosemite as the OS, so WINE & IRIS work fine on it!
Given all the times we spent talking about astronomy, the special time we shared watching the 2001 Leonids under a dark country sky, and the “help desk” support I tried to give him over the phone, I know that dad would approve of my use of his old computer in this way.
Certainly better than having it sit idle.