The free software was developed by RS Components, a European component distributor. It takes IDF files, which can be exported from most PCB design software, and converts them to a format ...
NextPCB has started offering free PCBA prototypes for PCB designs based on the ESP32-S3 wireless microcontroller following a ...
Fortunately, there is e.g. a free KiCad library with ready-to-use PCB antenna designs to help one get started with a custom design, as well as many other resources, covered in the article.