This repository implements a full 4G/5G telecommunications protocol stack (likely based on srsRAN) for software-defined radio applications. It provides implementations for User Equipment (UE), evolved Node B (eNB), gNB (next generation Node B), and Evolved Packet Core (EPC) network elements. The architecture follows a layered approach mirroring the telecommunications protocol stack (PHY, MAC, RLC, PDCP, RRC, NAS) with clear interfaces between layers. The system supports various SDR hardware platforms through a plugin-based radio frequency abstraction layer and can be used to build experimental 4G/5G networks for research and development. Key entry points include main.cc files in each application directory (srsenb, srsue, srsepc, srsgnb) and example applications in lib/examples/.