Bamboomero is an fastening system for bamboo structures that enables the construction of modular three-dimensional frameworks in a simple, economical and adaptable way. Despite bamboo’s excellent mechanical and ecological properties, it remains difficult to assemble due to its hollow and irregular shape. Karawitz, which has worked on several occasions in regions where bamboo grows abundantly, developed this system as part of Mayotte Call for applications. The system is based on a hollow metal partial sphere, perforated with multiple holes into which threaded rods attached to the bamboo are inserted. These rods are secured with nuts inside the sphere. Ultimately, the goal is to democratize bamboo construction by offering a simple, flexible, lightweight and reproducible fastening system adapted to local resources.