[atom0s]

There’s several projects in the past that abused ‘fake’ videos to use YouTube as file storage. The issue now with that setup is that YouTube compresses data causing losses. But the projects themselves still exist and can be used to create the needed video files.

You can find various projects on Github to do it:
https://github.com/search?q=youtube%20file%20storage&type=repositories

As for another project idea, which I would assume this also already exists, but you could create a tool that takes in a file/data and splits it into chunks of data that would fit into QR codes. Then have the tool generate images of each of the QR codes in order, and then stream those to ffmpeg or some other video library to generate a 1-frame-per-image slideshow video of each QR code. The end result would be the file/data encoded into QR codes stored in a video that is 1 frame per chunk.

You could then make another tool that reads the video data back frame by frame and automatically convers the QR code back to that given chunk of data, do that for each frame and you can rebuild the original data. Assuming no losses in frames it should be able to convert back to the original file/data.