⚡ Railway Express Node.js Server
Master JLPT Japanese with LangNova
High-performance backend engine powered by PostgreSQL, Redis Caching, and Direct Cloudflare B2 Asset Storage.
🖥️ Live System Infrastructure
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PostgreSQL Database
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Redis Cache Engine
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Designed for low latency, smooth audio streaming, and seamless synchronization.
Structured JLPT Curriculum
N5 to N1 interactive lessons, grammar patterns, audio scripts, and daily flashcards.
Redis In-Memory Cache
Instant leaderboards, rapid session caching, and sub-millisecond API response times.
PostgreSQL Railway DB
Robust relational data management for user progress, vocabulary mastery, and study analytics.