- engraved/stamped into a material (stone tablets, Edison cylinders, shellac 78s, vinyl, voyager golden record(maybe))
- paper, inked (books) or punched (cards, tape)
- photography; microfiche/microfilm (GitHub Arctic Code Vault), lithography?
I actually looked into what it might take to "print" an archival grade microfilm somewhat recently - there might be a couple options to send out and have one made but 99.99% of all the results are to go the other way, scanning microfilm to make digital copies. This is all at the hobbyist grade cheapness scale mind you, but it seems weird that a pencil drawing I did in 2nd grade has a better chance of lasting a few hundred years than any of my digital stuff.
Personal Data Preservation, Inspired by Ancient Writing https://ericnormand.me/clojuresync/will-byrd
Doing some things like disabling an input/output device, or an internal keyboard, or a webcam. Almost impossible. Even if there are some ways, they change so often. Let's say you have two cameras and an application that always picks the internal one. I couldn't find a way to disable the internal camera so that this app would pick the only available one.