The Supreme Court's decision in Google v. Oracle marked a significant milestone for developers, affirming that the ability to transfer code and skills across platforms is a critical interest that deserves protection under copyright law. The ruling determined that Google's use of Oracle's Java API constituted "fair use," highlighting the importance of developer interests in the context of copyright. Recognizing that developers invest substantial time and effort in learning platform APIs, the Court's decision prevents API owners from gaining excessive control over developers once they select a particular stack. By classifying APIs as further from the "core" of copyright, the decision acknowledges that the value of an API partly derives from the programmers' efforts to learn and utilize it, thus promoting innovation and creativity. Additionally, the Court emphasized that allowing API owners to restrict reimplementations could harm public interest by stifling creativity and innovation, as the costs and challenges of developing alternative APIs might lead to monopolistic control over interfaces. This landmark decision underscores the recognition of developer interests and is expected to enhance developers' freedom to innovate in the future.