In recent decades, there has been a rise in the use of digital technologies to support food sharing activities, such as the community-supported agriculture (CSA) model. These alternative distribution networks provide ethically sourced and sustainable produce. The physical and virtual networks of CSAs are based on principles of the social and solidarity economy, a sociopolitical movement that shares degrowth principles by promoting equitable wealth, democratic relationships and protection of ecosystems. However, while digital technologies support alternative exchange, controversies remain on the potential political implications of their application. This chapter investigates the uptake of digital platforms by CSAs to explore their application, barriers and outcomes for degrowth. The analysis draws on extensive mapping of cooperatives across Catalonia and is grounded in participant-observation of a CSA in Barcelona. This research highlights the role of platform cooperativism to support collaborative online sharing and ensure critical technology adoption for degrowth at the same time as preventing vertical power relations.