Hi guys I have spotted a Mac Mini 10,1 G4 1.25 256meg of ram 40GigHD dvd firewire etc
OS X 10.3 ,my question ,can I run Unity 5 on it ,does not have to be blisteringly fast lol just enough to port to IOS if that makes sense 
It doesn’t have to be blistering fast, but it does need to be an Intel based mac, with an OSX version higher than the one you have. I think 10.6 was just droped from the supported list.
PowerPC chip: no
OSx 10.3 Panther: nopers
256MB of Ram: 
This is a no go out of the gate.