Copy 1, long term storage: LTO / LTFS is the way to go for one of your copies, it is by far the most reliable storage solution.
Copy 2, a big ass Truenas build, they can be done at the cost of the hard drives and can be configured for very high availability with 3 parity drives. Pro tip, have spare drives in the chassis but not configured as hot spares, it’s a long story, you will learn if you go down the path of truenas. Get a used chassis for the drives and hook it up with a SAS adapter.
Copy 3, if you have important data, you will need a 3rd copy, and that should be LTO as well.

If you want more details, feel free to msg me

Android is primarily an advertising platform for Google it’s almost as if everything else comes second, maybe because it does.

“We are Apple, we are here to protect your privacy, also, ENJOY THESE GOOGLE ADS and My Money Hat!”