archive.org it could be down or hacked, nothing is really safe when storing it online.
I just want to save my soft files on the hard drive that only I can access.
I've found archive.org fucking hopeless for most of the old things I was curious about. It might have one page from a certain month and much of the time that's empty too. No way can you depend on it to retain stuff that interests you. And crypto is an awful lot more fleeting than most other subjects.