During November 2024, kk41912000@naver.com enhanced the BBST data structure in the postechDNN/postechDNN repository, focusing on generalizing its design to support custom comparator functions. This work involved refactoring legacy code by removing SimpleBBST.cpp and integrating comparator-based customizations directly into SimpleBBST.h, thereby increasing the flexibility and maintainability of the data structure. Utilizing C++ and template metaprogramming, kk41912000 also updated the project configuration to target a newer Visual Studio version and Unicode character set. These changes established a foundation for broader BBST applicability, enabling downstream components to leverage custom ordering while reducing technical debt and improving integration.