Things I have shipped and kept running, not tutorials I followed.
VizTube
August 2025 – Present
Video platform backend with an AI-powered RAG engine — Whisper transcription, local embeddings and pgvector semantic search, running on a deliberately tiny 1 GB EC2 box.
- Engineered a RAG pipeline where a decoupled FastAPI microservice streams audio to Groq whisper-large-v3, embeds chunks locally with all-MiniLM-L6-v2, and answers through pgvector search with cited sources.
- Runs live on a 1 GB-RAM EC2 t3.micro by design — pgvector inside Postgres rather than a separate vector database, cloud Whisper instead of local inference.
- Three Docker containers shipped via GitHub Actions CI/CD behind Nginx SSL termination and Cloudflare, cutting deploys from 15 minutes to 90 seconds at under $10/month.
EchoInbox
June 2026 – July 2026
Anonymous messaging platform with AI-assisted replies — structured Groq output, hardened auth, and a cascade-safe Postgres schema.
- Built a custom NextAuth credentials flow — 6-digit expiring email verification via Resend, bcrypt-hashed passwords, and Zod validation on every input.
- Designed a cascade-safe Prisma schema with transactional account deletion, relational integrity and indexed retrieval, using UUIDv7 keys to keep index lookups sequential.
- Integrated Groq Llama 3.3 through the Vercel AI SDK with Zod-enforced structured suggestions, an 8-second timeout guard, and parallel dashboard loads.
Job Application Tracker
January 2026 – February 2026
Full-stack Kanban platform for job hunting — React Server Components, optimistic drag-and-drop, and O(1) float ordering.
- Built on Next.js App Router with React Server Components to eliminate client-side loading waterfalls, with end-to-end type safety between Server Actions and the database layer.
- Implemented a dnd-kit Kanban board with optimistic UI updates and an O(1) float ordering scheme, so reordering a card writes one row instead of renumbering the column.
- Wired Better Auth database hooks to auto-provision a 5-stage pipeline on registration, and shipped a multi-stage Docker build on Next.js standalone output to AWS EC2 behind Nginx with Certbot SSL renewal.
AppraiseHub
March 2026 – June 2026
Employee appraisal platform with multi-role RBAC workflows across a layered Spring Boot backend and a Next.js dashboard.
- Layered Spring Boot service on MySQL with DTO-isolated API contracts and global exception handling.
- Spring Security 6 + JWT role-based access separating HR, manager and employee actors at the route level.
Real-time movie discovery app whose trending list is generated from live user search patterns rather than a static feed.
- Built a trending algorithm that captures and aggregates user search queries in an Appwrite database to rank titles in real time.
- Engineered debounced search to cut redundant API calls, on a mobile-first responsive UI deployed to Vercel via automated builds.
BankEase
January 2025 – March 2025
C++ banking simulation engine that replaced text-file persistence with binary serialisation for a 300% throughput gain.
- Rewrote the storage layer from parsed text I/O to raw binary serialisation, achieving 300% faster read/write operations on account transactions.
- Structured the engine around SOLID OOP boundaries so accounts, transactions and persistence stay independently testable.
Modern Web Stack Boilerplate
July 2026
A 2026 production web-stack guide covering three project shapes with database variants, verified against official docs.
- Documents App Router with Turbopack defaults and the prisma.config.ts-era Prisma 7 setup, with every version pinned against official documentation.
Terminal Portfolio
2025 – Present
This site — a browser CLI over a fully pre-rendered static document, so it reads well to both humans and crawlers.
- Every command output is pre-rendered to semantic HTML at build time, so the terminal is progressive enhancement rather than the only way in.
7k+ stars · 2 PRs merged · 1,400+ lines
- #3631 Built an LLM cost meter that patches the OpenAI client in place to track tokens and spend across 8 providers.
- #3492 Shipped a local RAG course navigator with a Gradio UI — offline sentence-transformers embeddings and OpenRouter Q&A.