Josh Yang contributed to the edge-core/sonic-buildimage repository by developing a configurable Layer 3 hashing depth feature for Accton AS4625 switches, introducing the multi_hash_recurse_depth_l3 parameter to enhance per-device network configuration. He implemented this using Shell scripting and network configuration skills, updating device configuration files to support flexible hashing operations. In addition, Josh addressed a stability issue in SAG environments by updating the sonic-utilities submodule, ensuring accurate IPv6 link-local binding and reducing misconfiguration risks. His work demonstrated careful submodule management and disciplined version control, resulting in targeted improvements that increased deployment reliability and maintained alignment with upstream utility changes.