backing up iOS devices on a external hard drive
I have an old MacBook that only has 128Gb of storage and most of it is already used however I have an external hard drive with 1.5 terabytes so I manage. I got a new iPhone with 256Gb and I have an iPad with 128Gb and I want to back them up directly into my external hard drive since I can't download it and transfer it. I tried looking up and it seems as if there is no easy way to do it. any suggestions?
MacBook Air 11″, macOS 11.0