Coldkennels
Barnack-toting Brit.
...and with XCode and brew.sh you get a lot of the pros of Unix without a lot of the drawbacks.
I love Linux, but macOS does the job just fine. You couldn't drag me back to any Windows OS, though.
JeffS7444
Well-known
Mint looks nice, but I really don't know what it's purpose is versus Ubuntu, from which it's derived.
NixOS intrigues because it seems like a fundamental rethink in how systems are configured and maintained, albeit a highly technical one.
boojum
Ignoble Miscreant
I never tried Ubuntu. I think that Mint is supposed to be easier and have more available packages that run out of the box. That is my impression but I do not know. It was an easy first time installation, an easy transition and easy to use. And it is French. ;o)
I know nothing of NixOS. I like Haiku because I like the graphics and it has no backward compatibility. No in-built emulators for old code from old systems. It boots in a flash. I remember BeOS when it was a hot topic in Silicon Valley but then it was not funded enough to get it to the finish line. There are some folks working in it. Thunderbird Mail used to have a BeOS graphics overlay that could be used. Then the overlay use was withdrawn, maybe by BeOS. The graphics are super.
There was so much OS work being done in the 90's. Maybe folks thought they could best MS or were just mad at MS but there was a lot out there. Then the market shook out and even OS/2 went away. Now it is just MS, Apple and Linux.