Codescience, a founding partner of the Salesforce Product Development Organization (PDO) program since 2008, specializes in app development services for the Salesforce AppExchange and has collaborated on over 300 applications. The document outlines the differences between managed and unlocked packages, detailing their respective use cases, dependencies, and governance requirements. It emphasizes the role of unlocked packages in streamline implementation scenarios while underscoring the significance of testing and compliance in development processes.