Shellfish farming requires a series of important decisions throughout the production cycle, from selecting seed size and deployment timing to planning harvesting and commercialization. These decisions directly influence production performance, profitability and business sustainability. Producers often rely on experience and local knowledge to estimate growth rates and harvesting periods. However, environmental variability and changing production conditions can make planning difficult. This challenge invites participants to develop a digital decision-support tool for oyster and clam farming in the Ria Formosa. By combining biological, environmental and production-related information, teams will create a prototype capable of helping producers explore different production scenarios and support planning decisions. The solution may estimate growth timelines, time to market size, harvesting windows and other production indicators relevant to shellfish farmers. Future developments could also integrate historical information on harvesting restrictions and environmental conditions to provide more comprehensive planning support.