zi chen

zi chen

Swift, Python & TypeScript developer

About

I'm Chen Zi, an independent developer building native Apple apps, web tools and AI products. I'm the maker of Cross Lyrics for Mac, iPhone and iPad. I work with Swift/SwiftUI, Python, TypeScript/React, FastAPI, PostgreSQL, Docker and Streamlit. My public projects explore real-time voice, LLM agents, memory retrieval, tool calling, multi-agent workflows and distributed search. GitHub: https://github.com/chengzi0103

Maker History

  • Cross Lyrics
    Cross LyricsLyrics and AI translation across Mac, iPhone and iPad
    Nov 2026
  • 🎉
    Joined Product HuntOctober 13th, 2026

Forums

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12h ago

Cross Lyrics - Lyrics and AI translation across Mac, iPhone and iPad

Keep lyrics beside your work on Mac, or let a nearby iPad follow the song while music stays on the original device. Cross Lyrics follows Apple Music and Spotify on Mac, iPhone and iPad, with synced sing-along highlighting and translations beside the original. Optional AI adds translation, pronunciation guides where supported, and line explanations on Mac. AI requires a service you configure and may charge separately. Available now on the App Store.
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