I replaced my 27 inch iMac with an M1 Mac Mini and RW runs perfectly.
It also ran well on my second hand 2014 Mac Mini so you have nothing to worry about with the new Mini.
I bought an M1 Mac Mini months ago and it works very well with Rapidweaver.
It replaced a 2018 Mac Mini and is way better / faster.
Hi Jamie!
Thank your very much for your helpful information.