3ee is an open-source system based on acoustic technologies for the identification, classification, and monitoring of pollinator species in the environment, especially in urban contexts. Developed by Martina Comola, Cemre Ercan, Chiara Guarino, Valerio Libardo, and Andrea Somenzi in collaboration with Polifactory, the project focuses on creating a distributed system of smart bughotels made of clay through 3D LDM printing. The bughotel modules have varied volumes with specific and customizable entrances to accommodate various pollinator species and promote the growth of moss in humidity niches. This aspect facilitates tracking the presence of insects and contributes to their sustenance. 3ee thus offers the possibility of creating cohabited micro-ecosystems of animal and plant species, integrating with different monitoring systems for environmental conditions and biodiversity, such as Open Farmer Kit.