Open-source components used by Haeun 2027

lunar-javascript 1.7.8 — https://github.com/6tail/lunar-javascript
MIT license: LICENSE-lunar-javascript.txt
Used for solar terms, sexagenary year/month/day/hour calculations.

korean-lunar-calendar 0.4.0 — https://github.com/usingsky/korean_lunar_calendar_js
MIT license: LICENSE-korean-lunar-calendar.txt
Used for Korean solar/lunar calendar conversion and leap-month validation.

The libraries are bundled locally. No birth information is sent to their authors.
Interpretation copy and scoring rules are authored specifically for this app.
Astronomical/calendar calculation is distinct from the app's entertainment interpretation.