ZimaBoard and iMacs

I am 75 year old and I need some answers. I have searched the Internet far and wide and could not get an answer.

I am thinking of getting a ZimaBoard for my extensive movie collection. I am currently using NAS DSM 920+ with Plex installed.

I want to know if I purchase a ZimaBoard will it work on an iMac. I saw a online video where you will have to know SSH. I have no idea about SSH. I want a sort of plug and play where I can just plug the Zimaboard into my networking router, use my browser and configure the ZimaBoard.

Thanks in advance for recommendations.