AI engineer. Builder from Nigeria.
I build production agentic systems with tool use, retrieval, and event-sourced state — across Claude Agent SDK, Vercel AI SDK, OpenAI tools, and VAPI. Three shipped in 2026 — Video Studio, AuraHealth, NotebookLM-clone — and the open-source retrieval substrate underneath them.
I build agentic systems that do real work in production. Tool use, retrieval, approval gates, real users — across whichever runtime the product needs (Claude Agent SDK, Vercel AI SDK, OpenAI tools, VAPI, MCP). Underneath sits the retrieval layer I open-source as Vectorless — structure-preserving document retrieval, no chunking, no top-K, no vector DB.
Most of what I finish starts as a friction point I have personally watched break down — hospital payment queues, document retrieval, agent memory across sessions — and ends as a product someone else can use today. I am also a medical student, which is why a lot of the harder problems on this page live somewhere near a hospital.
Available for contract work in agentic systems, RAG / retrieval engineering, and applied healthcare AI.
| Product | What it does | Link |
|---|---|---|
| Vectorless | Document retrieval for the reasoning era — LLMs navigate document maps instead of vector chunks. SDKs on npm + PyPI. | vectorless.store |
| Voxtar | SaaS product — closed beta. | voxtar.hallelx2.com |
| Coursified | SaaS learning platform — in build. | coursified.app |
| Hypatia | AI learning platform that teaches with generated analogies + Markmap/Mermaid visualizations. | hypatia.cv |
| Helix AI | Precision medicine application. | helixai-taupe.vercel.app |
| AuraHealth | Voice triage + Interswitch escrow for Nigerian hospital payment queues. VAPI + Gemini 2.5 Pro. | aurahealth-five.vercel.app |
| Hallex Medical | Clinician-side triage dashboard: Gemini 2.5 Pro clinical reasoning, RAG over call transcripts. | st-mary-hospital-theta.vercel.app |
Things shipped as real npm / PyPI packages with CI and live users.
| Project | What it does |
|---|---|
| vectorless | Structure-preserving document retrieval. TS + Python SDKs on npm + PyPI. Next.js + Fastify. |
| context8 | Collective memory for coding agents — stores solved errors in a vector DB so agents can retrieve fixes via MCP. Built on Actian VectorAI DB. (PyPI) |
| tytube | TypeScript port of pytube: YouTube metadata, streams, captions — no API key. Node / Bun / browser. (npm, signed) |
| youtube-transcript-ts | TypeScript port of youtube-transcript-api with translation + multi-format. (npm) |
| yarngpt-sdk | Unofficial Python SDK for YarnGPT's Nigerian-accent TTS — 16 voices, async + CLI. (PyPI) |
| swarmtorch ⭐ | PyTorch library of 120 metaheuristic optimization algorithms (60 training + 60 HPO). GPU-accelerated, drop-in torch.optim.Optimizer. (PyPI, paper in progress) |
| bridgehook | Zero-install ngrok alternative — forwards webhooks to localhost via browser + Cloudflare Worker relay. |
| llmgate | LiteLLM for Go — provider-agnostic LLM client over Anthropic, OpenAI, Gemini with router, fallback, cost tracking, capability flags, composable middleware. |
Big internal builds — included so you know the scope.
- Video Studio — Agent-driven launch-video generator: reads a README, drafts script, narrates with Kokoro TTS, composes HTML+GSAP scenes, renders MP4. Electron + Claude Agent SDK + HyperFrames.
- Flowstate — Markdown-driven agent automation system. Define agents as plain .md files; bind them to your already-authenticated CLIs, MCP servers, and skills as tools. Spatial flow view of every step.
- NotebookLM Clone — Self-hosted, local-first NotebookLM with three-stage retrieval (query expansion → hybrid pgvector + keyword → LLM rerank), self-critiquing deep-research agent, and two-host audio overviews. Next.js 15 + AI SDK v6 + pgvector.
- Hercules — Desktop research agent for systematic reviews and meta-analyses. Tauri 2 + Claude Agent SDK + multi-algorithm orchestration.
- Enterprise AI consulting engagement (anonymized) — AI call-answering system, SMS command center, and dashboard chatbot for a service-business vertical. LangGraph state machines, Twilio voice/SMS, multi-tenant DB tooling.
Where my medical training shows up in the code.
- AuraHealth · Hallex Medical · Helix AI · Voxtar — see Live Products above.
- Breast-Cancer — analyzing public datasets to investigate breast cancer pathogenesis.
- breast-cancer-detection — Streamlit classifier with radar-chart explanations + full metrics dashboard.
- cancerag — In-silico exploration of biased agonists for high-yield cancer pathways.
- coronavirus-drug-discovery — ChEMBL exploration for COVID drug targets.
- child-immunization-tracking-system — immunization workflow tooling.
- arxhimedes — SynthesisAI: PubMed research synthesis via LLMs + knowledge graphs with Graph-RAG.
- swarmtorch — see Open-Source above. Paper in progress on metaheuristic-vs-gradient training and HPO.
- Skill-Based Test — Research comparing skills-based personalization vs LoRA fine-tuning for AI personas.
- gonforcement-learning — Terminal-native RL playground in pure Go: Q-learning, DQN, PPO with live Bubble Tea TUI.
A decentralized marketplace for renting game assets on Solana. Four repos, full stack — kept here for completeness.
- scrunchy-contract — Solana Anchor programs.
- scrunchy-backend — NestJS: wallet auth, on-chain integration, rentals.
- scrunchy-cli — Python CLI that scaffolds Scrunchy into Unity/game projects.
- scrunchy-frontend — Next.js marketplace UI.
- Adjacent: phantomzero-vrf, hallelx2-bank, chainvote.
Languages TypeScript · Python · Rust · Go · R Agent runtimes Claude Agent SDK · Vercel AI SDK · OpenAI tools · VAPI · MCP · LangGraph LLMs Claude Opus/Sonnet/Haiku · Gemini 2.5 Pro/Flash · GPT-4o · YarnGPT Retrieval / data Vectorless · pgvector · Qdrant · Actian VectorAI DB · Graph-RAG Voice Deepgram · ElevenLabs · Kokoro · YarnGPT · Twilio · VAPI Web Next.js 15 · Fastify · NestJS · Hono · FastAPI · Gradio Desktop Electron · Tauri 2 · Remotion · HyperFrames Web3 Solana · Anchor · VRF Infra Neon · Drizzle · Supabase · Cloudflare Workers · QStash · R2 · Docker · Vercel · n8n
- 🌍 Portfolio: portfolio.hallelx2.com
- 🚀 Current focus: vectorless.store
- 🐙 GitHub: @hallelx2
- 💼 Open to: Contracts, AI engineering roles, research collaborations
⚡ Building at the edge of medicine, machines, and trust.