Compact ESP32 Multiplexer PCB Design & Prototype Development

We have a design incorporating multiplexing switches and an ESP32. The basic prototype has already been validated, and we now need to upgrade the existing proof-of-concept schematic into a smaller, more compact prototype PCB. The components used for the next prototype will differ from those in the original concept prototype, primarily to reduce the PCB size. Ideally, the overall board size would be comparable to a typical ESP32-S3 development board. Scope of work: 1. Review the current concept-prototype schematic, including multiplexing switches, an ESP32, and FPC connectors. 2. Design the PCB. We have an approximate target size, although the final dimensions have not yet been confirmed. The main challenge will be fitting a relatively high number of components into a very limited space, which will likely make routing more complex. Deliverables must include the native EasyEDA project/source files, suitable for further editing and manufacturing through JLCPCB.