SMIL is a historic community association in Belém, a residential area of Lisbon increasingly pressured by tourism and gentrification, where spaces for grassroots cultural expression and community gathering have been progressively reduced. As in many Lisbon neighbourhoods, traditional coletividades have declined in recent decades, often disappearing due to a lack of generational renewal. Recently revitalised by younger members working alongside long-standing ones, SMIL represents a successful example of intergenerational collaboration addressing this challenge. The project proposes a collaborative atelier based on hands-on learning, collective experimentation and shared knowledge. Participants will work together to design and build a sound system while exploring the technical and creative processes behind it. Musicians, artists, technicians and local residents will collaborate in an open workshop environment that encourages peer exchange and practical learning. Beyond constructing the equipment, the atelier aims to cultivate a community capable of developing future cultural initiatives and reinforcing SMIL as a space for community-driven cultural expression.