Open-source 3GPP Release-15 5G Core network in Go — AMF, SMF, UPF, AUSF, UDM, NRF and the rest of the SBA. An alternative to Open5GS as the 5GC behind a test gNB (srsRAN/OAI): provision test subscribers, drive 5G-AKA authentication and the NAS-5GS registration procedures, and exercise NGAP between your gNB and core. Standalone (SA) only.