Laurier St-Aubin← All work

Collection · 2025–26

Vibe-coded tools

Small tools I designed, then built myself with AI. Each one started from a real problem, at SEDA or in my own work.

How I build with AI

I learned the basics at a coding bootcamp. I'm not a career engineer, so I use AI to write most of the code and stay in charge of what it should do and how it should feel.

ProblemA real bottleneck, usually someone else's.
DesignFlow and UI first, in Figma or a written spec.
BuildAI writes the code. I steer, test and fix.
IteratePut it in front of the people who use it.
Composite Feed Explorer: provider filters, usability thresholds, and a table of assets with class, providers, 24h volume and depth
SEDA · Customer onboarding

Feed Explorer

Every asset SEDA could serve as a composite price feed, across Binance, Lighter and Hyperliquid. For each one: which providers list it, 24h volume and order-book depth. Filter by usability thresholds, open any asset for per-venue liquidity, and copy a ready-to-run SEDA Fast request.

Problem
Customers had to ask which feeds we supported, and the answer was basically "everything". True, but hard to act on.
Built with
A raw Python script to fetch the data, and a simple UI to serve it. Entirely vibe coded.
Result
Designed as part of a welcome package for new customers, with the plan to fold it into SEDA Fast. My role ended before it could launch properly.
SEDA · Business development

Solution Matcher

A Claude skill that takes a customer's problem, checks SEDA's library of oracle methodologies in Notion, and maps out a solution. If nothing fits, it doesn't invent one. It recommends escalating to the CTO or CEO.

Problem
SEDA sold complex oracle methodologies. Some could be reused for new clients, but BD didn't always see where an existing one fit, or how to pitch it.
Built with
A Claude skill, reading a Notion database
Result
The CEO asked for it, and I built it. BD barely adopted it. What I learned: an internal tool needs selling too. You have to promote it like a customer-facing product, or nobody uses it.
SEDA · Marketing

Weekly analytics report

Feed it the week's website analytics and a few dashboard screenshots, and it writes the weekly report, screenshots included, straight into Notion.

For
The CEO and the business team
Built with
Claude, Vercel Web Analytics exports, Notion
Result
A weekly read on the site, every week. The first one flagged a conversion leak on the homepage, and the reports became my case for better tracking: UTMs, and linking web analytics with marketing data.
Personal

This portfolio

The site you're on. I explored directions with Claude, chose this one, refined every case study, then built it myself with AI. The hero word is sliced by a waveform at 174 BPM, a nod to the drum and bass I produce.

Process
Design directions, then case studies, then code
Built with
Next.js, canvas, Vercel