The phonetic dictionary in `public/dict.json` is derived from:

- CC-CEDICT, licensed under the Creative Commons Attribution-ShareAlike 4.0
  International License (https://creativecommons.org/licenses/by-sa/4.0/).
  Copyright of the CEDICT/CC-CEDICT editors and contributors. Published by MDBG.
  https://cc-cedict.org/wiki/
- Word-frequency counts from hermitdave/FrequencyWords (OpenSubtitles 2016, zh 50k),
  used only to sort candidates and to prefer common words when adding pinyin.

The application source (HTML, CSS, JavaScript server and IME engine) is original.