full-stack / Production-preview, private beta
VocabVerse
Deployed Japanese vocabulary learning app built around songs, lyrics, study cards, Prisma/PostgreSQL, and a localhost-only production backend behind Nginx.
Study loop
VocabVerse
Song lyrics become durable Japanese study material.
- Role
- Creator
- Updated
- Jul 2026
- Tech
- Next.jsReactTypeScriptPrismaPostgreSQLJapanese learningfull-stack
Overview
VocabVerse is a deployed private-beta Japanese vocabulary learning app built with Next.js, Prisma, PostgreSQL, Nginx, and systemd. The app includes song, lyric, vocabulary, grammar, study, and review surfaces documented in the project repo.
The important boundary is that the app is not public proof of learning outcomes. It is production-preview supporting evidence for a deployed full-stack learning workflow and its data model.
What I Built
The implementation includes:
- song and lyric study surfaces
- vocabulary and grammar study material
- study-card and review flows
- Prisma/PostgreSQL persistence
- private-beta access flow
- deployed Next.js production-preview build
Those pieces make VocabVerse useful as supporting product and data-modelling evidence without claiming that the study method has been proven broadly.
Boundaries
This page intentionally avoids claims about learning outcomes, fluency, retention, progress, audience reach, usage metrics, or unreviewed rights to public lyric examples.
Screenshots, safe demo content, and a current learning-flow walkthrough are planned before expanding this into a fuller case study.