Index · 23 case studies

The project index.

Products I designed, engineered and shipped — most of them solo, from first commit to production. Filter by domain or search by stack.

Case studies

Screenshot of DanAI Deep Research
AI · 2024Live

DanAI Deep Research

An evidence-first research workspace that turns complex questions into clear, source-grounded reports.

Next.js · LLM orchestration · Vercel · PWA

Screenshot of Vững Lái
Mobile · 2024Live

Vững Lái

On-device AI driving assistant for Android that keeps a safe following distance — free, no ads, no account.

Android · On-device ML · Computer vision · GPS

Screenshot of MediScanAI
Healthcare · 2024Public preview

MediScanAI

Multimodal medical-data review workspace across seven specialties, with clearly bounded AI assistance.

↳ Prototype evaluated at 3 clinics

Next.js · Python · FastAPI · YOLOv8 · Gemini Vision

Screenshot of DanAI Tử vi Studio
AI · 2024Live

DanAI Tử vi Studio

Deterministic chart engine plus AI interpretation that cites the evidence behind every statement.

Next.js · Deterministic calendar engine · LLM · Vercel · PWA

Screenshot of AImpress Studio
Creative · 2024Live

AImpress Studio

AI-assisted photo restoration: repair, colourise and expand old photographs with careful review against the original.

↳ 2,000+ users

Next.js · Supabase · Cloudflare R2 · OpenAI · Stripe

Screenshot of Canada CRS Companion
Immigration · 2024Live

Canada CRS Companion

Tracks every Express Entry draw, places your CRS score against recent cut-offs and alerts you on Telegram.

Next.js · Telegram Bot API · Vercel · PWA

Screenshot of DanAI Karaoke
Creative · 2024Live

DanAI Karaoke

Browser studio that turns a song into a karaoke or music video — AI lyric sync and on-device vocal separation.

Next.js · On-device audio ML · Speech recognition · Vercel

Screenshot of iDecor
AI · 2024Live

iDecor

AI interior and exterior design studio connected to vetted designers and home-service experts in the Greater Toronto Area.

Next.js · Image generation models · Stripe

Screenshot of LumiPad
Education · 2024Live

LumiPad

Real-time collaborative boards for classrooms — students join instantly, teachers stay in control.

Next.js · Real-time sync · Cloudflare · Vercel

Education · Web

GreenSchool Education Suite

Private / client work

Education · 2024Private / client work

GreenSchool Education Suite

CRM and AI tools for a preschool network, including an AI STEM lesson planner.

↳ Teacher prep time cut from 3 hours to 15 minutes per lesson

React · Node.js · Gemini · Supabase

AI · Web

TalentMatchAI

Private / client work

AI · 2024Private / client work

TalentMatchAI

Résumé screening and candidate matching that extracts skills, ranks candidates and writes recruiter summaries.

↳ Screening time per candidate reduced from 12 minutes to under 60 seconds

Next.js · Pinecone · OpenAI Embeddings · Supabase

Immigration · Web

AI Immigration Platform

Private / client work

Immigration · 2024Private / client work

AI Immigration Platform

Smart legal assistant that automates PR/visa eligibility checks, document guidance and case analysis.

↳ Consultation workload reduced by 50% for immigration offices

Next.js · LangChain · Gemini API · Supabase

Screenshot of Gu Nhạc
Consumer · 2024Live

Gu Nhạc

Music cloud and community: upload audio or video, stream on mobile, build public playlists and share exact-song links.

Vite · Firebase · Vercel · PWA

Screenshot of Nhớ Đồ
Consumer · 2024Live

Nhớ Đồ

AI household inventory: remember where things are stored and find them by AI search, voice or QR code.

Vite · Firebase · AI search · Vercel

Screenshot of AI Video Analysis
AI · 2024Live

AI Video Analysis

Upload a video and get a summary, scene breakdown, ad scripts, a Q&A agent and a troubleshooting guide.

↳ Used in education, marketing and field-service support

React · Vite · Gemini Video · OpenAI Vision · LangChain

Screenshot of Canadian Citizenship Test Prep
Education · 2024Live

Canadian Citizenship Test Prep

Free bilingual citizenship-test prep: 1,021 questions, memory mnemonics, a 30-minute mock exam and an audiobook.

Next.js · Firebase · Gemini · PWA

Screenshot of Ontario G1 Prep
Education · 2024Live

Ontario G1 Prep

Bilingual G1 knowledge-test practice: 290 original questions, each linked to official Ontario sources.

Next.js · Firebase · Vercel · PWA

Screenshot of POSH Smarthome
Consumer · 2024Live

POSH Smarthome

Smart energy management platform: monitoring, optimisation and personalised solar recommendations.

React · React Native · Node.js · Firebase

Screenshot of TrackIRCC
Immigration · 2024Live

TrackIRCC

Fast reference tools for IRCC processing times, LMIAs, RCICs and citizenship preparation.

React · Node.js · REST APIs · Vercel

Screenshot of PolyAI Chatbot
AI · 2024Private / client work

PolyAI Chatbot

One-click private Gemini deployment that chats over text, images, video and PDFs without exposing the API key.

Next.js · TypeScript · Gemini API · Vercel

Screenshot of AI DermAssist
Healthcare · 2024Live

AI DermAssist

Dermatology assistant that helps Vietnamese doctors review skin-condition photos.

React · Python · TensorFlow · Render

Screenshot of AI Language Learning
Education · 2024Live

AI Language Learning

Conversation practice in any language with an AI partner that corrects grammar and suggests vocabulary.

React · OpenAI API · Vercel

Screenshot of Street Speedster
Mobile · 2024Live

Street Speedster

Physics-based racing game built with Matter.js and React Native, published on Google Play.

React Native · Expo · Matter.js · Android

Archive

Earlier and retired experiments.

  • BigShiftQuizEarly AI quiz generator that turned PDFs, DOCX, Excel and images into assessments.Demo retired
  • Repairo AIDiagnose broken devices and appliances from a photo or video, with step-by-step repair guidance.Demo retired
  • V-EdiCorrectVietnamese grammar, style and academic-format correction assistant.Private / client work
  • Veo FlowScript-to-video pipeline with batch generation, style presets and automatic enhancement.Private / client work