Dominoes and Roquelaures

Fleet version of the domino technology.

It's a very small chip, so it's usually embedded in a flat card for easy handling until implanted. Usually programmed prior to implantation, using any number of input devices, from earpieces to full computer decks.

The earpiece programming involves sliding the chip into the earpiece and then wearing the earpiece while talking the device through commands.

Fleet roquelaures are very expensive, very dangerous, and restricted tech. They're only issued to one person at a time, and the assignment is tracked so the device can be returned. The chip is locked to that person's biosigns: "an algorithm to check key biological factors, starting with the most rare."

Implantation puts the chip inside a vein.

Shape library includes the wearer's in various states, so someone can pretend to be more or less wounded than they are.

Is powered by the wearer's own biological energy; Fleet roquelaures will starve their wearers to death before allowing the projections to fail unless forced not to.