Revali is a marketplace for the reuse of materials and surplus construction sites (tiles, tiles, doors…) in short circuit. This solution brings together large construction companies and small and medium-sized enterprises to upgrade the unused finished products of construction sites. Revali is an easy to use application. On the one hand, on site, construction workers take pictures of materials for sale and post them on the application. Thanks to Revali, they reduce their environmental impact and are part of an eco-responsible approach, while saving time and money. On the other hand, artisans buy the products they need at low cost. This allows them to fight inflation and material shortages.