During September 2025, Craig Eagleburger developed foundational documentation and system design for the Test Node Orchestrator within the embedded-purdue/slayterHIL repository. He established a clear interface architecture, selecting protobuf for data serialization and evaluating SPI, USB, and UART as physical-layer options, ultimately designating SPI for orchestrator communication. His work detailed thread layout and communication paths, providing a robust technical foundation for integration. Craig also improved onboarding by updating Markdown-based setup guides and adding new team member documentation. These efforts enhanced onboarding efficiency and established a stable integration path, supporting more reliable embedded systems testing and future feature development.