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The application provides a Korean‑language keyboard for macOS built on libhangul. It implements core typing functions such as Hangul‑English toggling with the space bar and Hanja lookup via Option‑Enter, and includes a “moachi” feature that groups keystrokes for easier input, particularly benefiting users of the three‑set keyboard layout. By keeping the implementation lightweight, it offers only the essential editing capabilities while remaining responsive on the operating system.

Additional utilities support various Hanja entry methods, including per‑character conversion, word‑level conversion, meaning‑based search, and a continuous input mode. Documentation is bundled to guide users through installation, configuration, and shortcut customization. The project is open source, with the front‑end distributed under a 2‑clause BSD license and the back‑end, an Objective‑C interface to libhangul, under LGPL. Stable releases and experimental builds can be downloaded from the official site, and users can report issues through the project's GitHub issue tracker.