I got a big external harddrive. I was looking for a good program to make it look nice like retro pi. I found this. I don't mind paying. I want to know if I pay for it can I put it on a harddrive so I can use it on different computers in the house? IDK know how it will work. will i have to sign in to activate big box or something every time? If I can't get this to work on a portable harddrive i may have to see if I can figure out hyperspin. i hear it's kinda time consuming to set up thou.