Multiplayer aims to simplify debugging distributed systems by offering full-stack, session-based visibility for engineering and support teams, and emphasizes the importance of shared language when discussing system and software design. The article series differentiates between system design, which encompasses the entire architecture including hardware, software, and user interactions, and software design, focusing on the process of defining system architecture to meet application requirements. It outlines the iterative nature of system design and its phases, such as technology selection, capacity planning, interface design, and risk mitigation, while also distinguishing between architectural styles and patterns like monolithic, microservices, and peer-to-peer paradigms. Additionally, it highlights the common distributed system design patterns used to address challenges in data storage, messaging, and system management. The piece clarifies the difference between system design and design systems, the latter being a collection of components for consistent interface creation. Multiplayer provides resources for new users to experience their service through a free sandbox and trial plan.