This was precisely my first thought upon reading. "Ah, yes - the attack that was PoC'ed against commissaries operated by the US armed forces a bit over a month ago."
There are a few of us around who still make them. I do film photography and have my own darkroom already for that purpose. Adding holography on top of that is a relatively minor lift, and every once in a while the urge strikes and I'll get the equipment out.
The main challenge is that there are, to my knowledge, only two remaining manufacturers of the plates - in France, and in Russia.
While I love this idea generally, the scope of the use of generative AI for artwork is too vague for my comfort.
The README.md mentions that "no art is AI-generated, though some has been retouched with AI." Superficially, that sounds mild. Some of the other closely-related projects, however, use different verbiage, or none at all.
For those of us with ethical concerns around generative AI application to artwork, much more detail may be needed before we could decide if this was appropriate for us.
Nothing at runtime uses AI either, at least in the sense of LLMs or diffusion. The collage is Pillow and numpy, and detection is BirdNET, which is a classifier, not a generative model.
However I have used LLMs for code-related work, and for writing scripts for programatically editing the images, like cutting, contrast and colour corrections.