Developed a hardware scripting enhancement for the apache/mynewt-core repository, focusing on enabling precise J-Link probe targeting in embedded systems workflows. The work introduced support for passing the JLINK_SN serial number to scripting tools such as nrfutil, nrfjprog, and pyocd, allowing programmatic selection of specific probes during flashing and reset operations. This approach improved reliability and reproducibility in multi-probe lab environments by reducing the risk of mis-targeted device programming. The implementation leveraged Shell scripting and embedded systems expertise, with an emphasis on hardware debugging. The feature was delivered as a single, well-scoped change, anchored by clear, auditable commits.