Any digital asset worthy of a look are in my computer (and in a separate backup drive). All my personal data resides in a special volume, which is mounted at a directory under root path, and almost everything under $HOME is a symlink to a directory in this volume, or in some cases a symlink to a directory symlinked to another directory in that volume. At the root of the volume there's a Readme.org file, which lists all the important paths.

Among tens of gigabytes of data, there's actually a few megabytes worth saving: all my notes (agenda, research, etc.) and writing (blog, research, literary stuff), all of which conveniently are located in a specific tree, most if not all in Org mode format; and my bits of code, should I produce a project of importance in the coming years. I use pass(1) and gpg to encrypt lost of stuff, including passwords, all of which is better never recovered.

This was not a personal "doomsday" plan (given also I'm still in my twenties), but it all emerged naturally from the normal way categorisation and hierarchy among files and directories work. And I recently added that Readme.org file to formalise the fundamental bits of such hierarchy and categorisation. But I do reflect on, from time to time, things like "what would happen if Fernando Pessoa encrypted his $HOME?"