The Nexus Trilogy (https://www.amazon.com/gp/product/B00TOZI7FM?ref_=dbs_m_mng_rwt_calw_tkin_0&storeType=ebooks&qid=1638405916&sr=8-1)

Takes place in the not too distant future and focuses on a group of grad students who design a mental WiFi network that can be used to communicate telepathically and the groups & governments who try to get involved to steal it. I thought the whole series was really good.