A personal mobile app for learning and reviewing English vocabulary, workplace expressions, and technical (SRE / FinOps / DevOps) jargon. Each entry pairs a term with a short gloss, a full plain-English explanation, a Chinese translation, and example sentences, then surfaces them for review with spaced repetition.
docs/PRD.md— the product requirements. Start here to build the app.data/wordbank.jsonl— the vocabulary source of truth (one JSON entry per line). Authored externally; the app reads it and builds a local SQLite database from it at load time.
Pre-build. The data source and requirements exist; the React Native app is not scaffolded yet. See docs/PRD.md for goals, the entry schema, screens, and the build-order milestones.