masscode_merge processes both db files, and merges then into a single db file, preserving folder structures, including nested folders, while avoiding duplicates.
It is coded in [BCX](https://bcxbasiccoders.com/), which is a Basic to C/C++ transpiler, and uses the [Parson]([GitHub - kgabis/parson: Lightweight JSON library written in C.](https://github.com/kgabis/parson)) json library.
It is currently Windows-only, but Linux and macOS versions are being worked on.