Interesting. That is the second vaccine in 4 months, Pfizer / Valnevas's upcoming (non mRNA) VLA15 was discussed here 4 months ago:
I actually remember being told more than ten years ago in university lectures about such technologies. And that there was some technology that used DNA bonded to gold particles, and I think those would be shot through the skin or something. Never heard much of that again ... though...
Coincidentally I saw "No time to die" last night.