During December 2025, contributed to the sufst/pcb repository by enhancing the KiCad library with a new TQL850CSV33 3.3V LDO symbol, updating the sufst-lib.kicad_sym file to support broader design reuse. Focused on electrical engineering and PCB design, the work involved creating and documenting the symbol using KiCad, ensuring consistent schematic capture and reducing design time for future projects requiring 3.3V LDOs. Employed version control to manage and document changes, prioritizing maintainability and clarity. No critical bugs were addressed during this period, with efforts concentrated on feature development and improving the efficiency of PCB design workflows through library maintenance.