Duong Dinh Dai — Live Portfolio Demos
Self-hosted demo environment for two production systems I built and operate solo. Architecture docs: github.com/daiduong-eth → portfolio/
Xóm Data — Job Board + Data Pipeline ● LIVE
Automated job-data pipeline: Node.js crawler on a 30-minute cron ingests jobs into MySQL with idempotent upserts and self-healing backfill, feeding a Next.js job board. Seeded with real production data; the crawler keeps ingesting live.
CrystalShop — Dual-Currency Ledger Platform ● LIVE
License-key rental platform with a dual-currency ledger (paid Crystal / earned Shard), concurrency-safe money mutations, RBAC + audit-logged admin, and DoD/WoW/MoM metric dashboards. Seeded with demo data.
Admin demo login: demo@crystalshop.io / DemoAdmin@2026
Data Catalog — OpenMetadata ● LIVE
Self-hosted OpenMetadata instance cataloging both demo databases (MySQL + PostgreSQL): browse schemas, tables, and column-level metadata the way a data team would — ingested via the OpenMetadata CLI workflows.
Login: admin@open-metadata.org / DemoAdmin@2026
Demo data only — production runs elsewhere. Everything here is Docker Compose on a 2 vCPU / 4GB VPS behind Caddy (automatic HTTPS). Contact: daiduong.eth@gmail.com · GitHub · LinkedIn