First time poster, follower of Spaceinvader One! I have a Mac Pro 5,1 (Mid 2010) that can't be updated officially to Mojave.  Not sure how secure this is, since it's being updated by someone else: How to Install macOS 10.14 Mojave on an Unsupported Mac ( ) I am wondering if I can install unRaid on this Mac Pro.     I also have 2 other Mac Pro 4,1's (currently running Ubuntu for my kids) and wanting to know IF I can pool all those together.