1. Nu is a proposed supermarket in Paris without packaging where customers can fill reusable containers directly from bulk goods sections and pay by weight registered on an electronic badge. 2. The project is developing an innovative payment and weighing system using scales under goods to track purchases in real time. 3. Concepts for reusable shopping kits were presented to make the deposit system practical while being fun, including interlocking bags like Lego or Tetris pieces and flexible tubes of varying volumes.