Matan Dessaur
Matan DessaurMontreal. A modern developer. Notes along the way.

I learn, I create, I share, and I live a little

I develop experiences, mostly on the web, with AI woven through everything: studied, sharpened against, embedded. I have an eye for UI and UX and I take it seriously, and I trust the user enough to hand them something unique, the way a cook trusts a touch of umami to change the whole dish. By day I lead a team of developers. The rest of the time I collect what sharpens me: ideas, visions, perspectives, and the tools I swear by. That collection became Tooolbox.

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Web developmentMobile developmentApp developmentNext.jsReactTypeScript.NETPythonAIEmbedded systemsBatch automationBuilder.ioSanityHeadless CMSAzuren8nUI/UXFigmaCustom CSSPhotographyPhotoshopLightroom
CookingSnowboardingPoetryWritingHikingBikingSwimmingTea brewing

Selected work

Live and maintained
Product

Mindsteps

From anxious thoughts to calm next steps. A progressive web app that turns anxiety into small, actionable guidance.

Visit
Product — rework in progress

Aléoresto

Roll the dice on where to eat tonight. Random nearby restaurant picks, made by a food lover for food lovers.

Visit
Product

TrvlBuddy

AI-powered travel planning: multi-destination itineraries, local discovery, and offline-capable PWA for trips worldwide.

Visit
Games — Playdate

Playdate games

Little games for Panic's Playdate handheld: the Bureau trilogy, Push and Pool, My Parking Spot!, and more, all on itch.io.

Visit
Professional

See It In Your Bathroom

An AI visualizer for Bath Fitter: real catalog products, real colors, real details, rendered directly in a photo of your own bathroom.

Coming soon
Product — v3 in the making

Symphonee

Part OS, part IDE: an environment where AI agents develop, research, and optimize systems on their own, built on a shared Mind, a knowledge graph that remembers every decision so its intelligence compounds across sessions and models.

Coming soon

Featured challenge

10 sites in 10 days

Ten complete websites, shipped in ten days. I built an AI-powered workflow that combines intelligent agents, context building, and automation to develop exactly the way I would: code standardization, full content generation, Sanity CMS, and Next.js best practices, every time. Each site is a plug-and-play solution. It is like having my own development team working at lightning speed. Every site is live, so open them and click around; the content in them is placeholder.

Day 1Open the site
Day 2Open the site
Day 3Open the site
Day 4Open the site
Day 5Open the site
Day 6Open the site
Day 7Open the site
Day 8Open the site
Day 9Open the site
Day 10Open the site

I like being on top of the wave. And when I fall, I fall like a snowboarder: controlled, up fast, back on the snow.

Past experiments

Retired, remembered

Not everything I build stays online, and that is the point. Each of these was a question I wanted to answer. They are offline now, but every one of them left something behind in how I work.

  1. 2024One Good ThingA daily gratitude PWA: one good thing a day, nothing more. Taught me how far a single well-made interaction can carry an app.
  2. 2024IOUBill splitting and expense tracking gamified with Gemini. Proof that money apps do not have to feel like spreadsheets.
  3. 2023Simpl AIA deliberately tiny GPT chatbot, built when the API was brand new. The exercise was restraint.
  4. 2023//DoubleSlashNote-taking for developers: syntax highlighting, autosave, search. The notes app I wanted while learning.
  5. 2023Gym SchedulerA fitness management system for trainers: clients, notes, communication. School project that outgrew its brief.
  6. 2023MatchingCoffeesA dating app matching people on coffee preferences. Silly premise, serious full-stack build.
  7. 2022Essmei BandanasAn e-commerce storefront for handmade bandanas. Early lessons in catalog, cart and checkout flows.
  8. 2022whatsaround.meA local exploration companion suggesting spots tailored to your taste. Its restaurant corner later grew into Aléoresto.
  9. 2022webcity.dev → ontheweb.agencyAn agency built with a friend. When his life got too busy, it grew into my solo practice, ontheweb.agency: websites, web experiences, internal tools, and more.

Professional journey

The resume, in short
  1. 2024 — present

    Bath Fitter — Saint-Eustache

    Junior Developer Intern → Full-Stack Developer → Lead Developer → Web Team Lead

    Leading the web team behind a North American brand: architecture, API integrations, code quality, and shipping with Builder.io, Next.js, TypeScript, React, headless CMS, and microservices.

  2. Owner

    ontheweb.agency — Montreal

    Web design and development studio

    Custom sites and web applications for clients, plus the internal tooling that keeps the work fast and consistent.

  3. 2023

    Teccart Institute

    Website and Mobile Application Development

    Full-stack developer program.

  4. 2020 — 2022

    Cégep du Vieux-Montréal

    Professional Photography and Digital Imaging

    The eye came before the code.

  5. 2017 — 2019

    Cégep du Vieux-Montréal

    Computer Science Technology

    Software development and network management.

Writing & tools

Lives on tooolbox.io
Where the notes end upTooolboxOne of my facades: 662+ hand-picked tools for web design and development, and the blog where I think out loud.tooolbox.io

Built at the desk. Imagined everywhere else.

When away from the keyboard...

Photography, cooking, life.

Open Instagram

I trained as a photographer before I wrote software for a living, and it still shows in how I build. When I am not shipping, I am behind a camera chasing light, at the stove testing a recipe on people I love, or on a mountain somewhere waiting for the snow to come back. That side of life, the unfiltered one, lives on Instagram.