I recently bought an imac g3 snow that was stopped in time, it was turned off in 2006 and was only powered on today, in September 2020. It has many things on the HD that no longer exist, of which, I will backup and upload for the macintosh garden. Some programs I copied to my USB stick and worked on my powerbook, others have dependencies on system folders or something, and will not work if they are transferred to another computer. I wonder if there is any program that backs up programs correctly...