Things I've shipped, broken, and rebuilt

zakat-eligibility-triage-n8n.vercel.app

An AI triage agent for crowdfunding campaigns that does everything except decide. It reads a campaign, assembles the evidence a zakat determination turns on, quotes the organizer in their own words at exact character offsets, names what is missing or contested, refuses when the text cannot carry a determination, and hands the file to a qualified human reviewer. It never issues a ruling. Two model calls with structured outputs, byte-checked quotes, a deterministic four-rule refusal, human-only outcomes enforced by Postgres CHECK constraints, and an n8n layer that owns the clock and the megaphone while the code owns the rules.

Architecture & gallery

M.Eng Software Engineering research project at McMaster, supervised by Dr. William Farmer and Dr. Richard Paige. A study companion built for neurodivergent learners, designed first for students with ADHD, that turns lecture recordings into verified study notes: every released sentence cites the minute of audio it came from, and any sentence the checker cannot prove is visibly held back with its reason shown, never silently dropped. A fail-closed release gate discharges per-response verification conditions in Z3 (completeness, support gating, non-interference, a citation-recall floor), and the pipeline state machine is model-checked in TLA+. The Socratic tutor is given only the solution steps the student's own typed work has demonstrated, so it cannot reveal an answer it was never told. Nine Python FastAPI microservices, hexagonal ports and adapters, over a Redis Streams bus. On a 58-minute MIT lecture the gate released 23 of 29 generated claims and held back 6 with their reasons.

applify-ai.com

Production SaaS for AI-powered resume tailoring. Event-driven background jobs (Inngest) run multi-minute LLM pipelines with step-level checkpointing; OpenAI Responses API with Zod-validated structured outputs; ~90% inference cost reduction via prompt-cache-optimized prefixes; middleware-enforced JWT auth for premium gating; 5-job CI pipeline with Dependabot and Sentry observability.

skomp.studio

Production multi-tenant SaaS platform for fitness studio management, on a 74-model Prisma schema and 196 API routes. Its one launch client runs its entire operation on it in production with no parallel manual system: $45K+ CAD processed since launch across 640 registered users, 1,380 confirmed bookings and 105 active memberships. Tenant isolation enforced in a tenant-scoped data-access layer (a scoped Prisma client), guarded by a build-failing test for unscoped models; Square SDK with idempotent payments and per-studio credentials; AWS SES/SNS/AppSync for email, SMS and real-time messaging; 8 required CI checks on every branch-protected pull request: 16,000+ Vitest cases, two Playwright suites, a Square-sandbox payment run, a replay of every migration that refuses destructive DDL, and Gitleaks secret scanning.

Agentic legal associate for instant, cited access to Canadian law. A LangGraph state machine routes intent and runs jurisdiction-aware vector retrieval (provincial queries auto-merge federal law) over a 16,000-chunk corpus of seven Canadian statutes (MongoDB Atlas vector search, Google text-embedding-004), with Gemini 2.0 Flash structured outputs, multi-turn thread memory, and a draft-to-PDF pipeline for legal notices. FastAPI backend, Next.js 16 frontend. Built for Delta Hacks 12.

Event-driven microservices platform for remote multi-guest podcast recording and broadcast-grade mastering, extended with an automated post-production and publishing pipeline. Six services communicate over a RabbitMQ topic exchange with dead-letter queues, each built on a hexagonal architecture. WebRTC captures multi-track audio, uploaded to object storage in checksummed chunks. FFmpeg masters the result with EBU R128 loudness normalization and multi-track mixing, driven by an event-driven session state machine. faster-whisper produces word-level timestamps; AI generates show notes, chapters, and titles with a deterministic fallback; RSS 2.0 feeds handle distribution. Verified end-to-end against a Docker Compose stack.