The advent of shape-adaptive computers, which consist of microscale devices that can wirelessly interconnect and dynamically reconfigure their shapes and functions, presents new challenges for software development. Existing programming environments and languages are not well-suited for managing the complex state interactions and asynchronous processes inherent in such systems. In response to these challenges, we propose the design and current status of MorphLang, a declarative programming language specifically designed for shape-adaptive computers. MorphLang abstracts the complexities of device interaction, enabling developers to focus on high-level behavior definitions without the need for intricate state management. Through a practical case study, we demonstrate MorphLang’s ability to handle dynamic node interactions effectively, paving the way for more efficient and innovative applications in shape-adaptive computing. Our approach not only simplifies the development process but also lays the groundwork for future advancements in this emerging field.