In April 2025, Andrew Halaney developed and integrated Essential System Management (ESM) support for PMICs in the flipperdevices/u-boot repository, targeting the k3-am69-r5-evm and j784s4_evm_r5 embedded platforms. He added a dedicated ESM node to the device tree using DTS and enabled ESM-related configuration options, allowing the system to trigger resets and program ESM functionality during boot. This work, implemented in C and DTS, enhanced system stability and error handling at boot time. Andrew’s contribution demonstrated depth in configuration management and embedded systems, focusing on robust device driver integration rather than breadth or volume of changes.