Someone should reimplement this for use with cheap laser engraving machines so we can make physical backups on any material like stone, wood, stainless steel, or plastic.
Edit: would this work?
Since it seems to accept an image, the question is what material would be best to run it on and then have it be scannable well on a standard flat bed scanner, which almost certainly will be available in some form as long as our current civilization survives.