Available for new projects

Products,
engineered end to end.

CARMAR Labs is a full-stack studio. We design, build and ship web platforms, iOS apps and AI features — for sectors from sports and music to health, fintech and insurance.

Start a project See the work
14 Products shipped
963 Commits in the last 12 months
Oct → Sep, commits per month
2024 Shipping since

01 — Selected work

Six products, shipped and running.

CacheOut landing page
01 Live

CacheOut

Sports · 2026

NFL and college football cash-out alerts. Every game priced before kickoff, watched live, and graded in public.

Problem
Bettors find out a pick was right only after the game ends, long after a sportsbook cash-out was worth taking.
Build
A prediction terminal that prices every game from de-vigged odds, watches it live, and alerts members the moment a published call is strongly winning.
Result
Every call graded in public on closing-line value. 79 World Cup calls settled at a 76% hit rate; the members-only board launched with 199 seats and Stripe subscriptions.

Next.js 16 · TypeScript · Supabase · Stripe · Claude API

cacheout.net
XLR.art marketplace
02 Live

XLR.art

Art marketplace · 2026

A digital art marketplace with auctions, artist royalties and premium memberships.

Problem
Artists lacked a fair, transparent marketplace for digital art with proper royalty enforcement.
Build
A full-stack marketplace with real-time auctions, automated royalty splits and Stripe-powered premium memberships.

React · Node.js · PostgreSQL · Supabase · Stripe

xlr.art
Rent for Friends landing page
03 Live

Rent for Friends

Rentals · 2026

An invite-only rental network where every member is vouched for by a real connection.

Build
A referral-gated application, email and Stripe Identity verification, listings on Google Maps, and an admin approval panel.

Next.js 16 · React 19 · Supabase · Stripe Identity · Google Maps

rentforfriends.com
Bag Gammon storefront
04 Live

Bag Gammon

Commerce · 2026

A luxury storefront for a leather bag that unfolds into a backgammon board.

Build
A playable board on the landing page, ink-drawn art, and live Shopify prices and checkout through the Storefront API.

React 19 · TypeScript · Vite · Shopify Storefront API

thebaggammon.com
Nassa Group corporate site
05 Delivered

Nassa Group

Insurance · 2026

Corporate site and client portal for a Haitian insurance group.

Build
Role-based access (5 roles, 37 permissions), live INASSA policy and claims data, trilingual FR/EN/HT support, and bot-protected contact and quote forms.

Next.js 16 · React 19 · PostgreSQL · Resend · RBAC

Tropic Maintenance dashboard
06 Delivered

Tropic Maintenance

Industrial · 2026

A field maintenance app with multilingual voice reporting, QR asset scanning and offline-first sync.

Problem
Field technicians relied on paper forms, causing delayed reporting and lost maintenance records.
Build
Voice-to-text reporting in Spanish with auto-translation to Haitian Creole, QR code asset scanning, and an offline-first architecture.

Flutter · Voice AI · Firebase · Supabase

View the app

AI inside

AI features running in production today.

02 — Index

Everything else on the bench.

Client work under NDA is listed by sector only.

07 Enterprise Insurance Platform Claims portal with an analytics dashboard, document tracking and multi-type claim processing. Insurance 2026 Delivered 08 Zeph Provider site for a smart breath trainer used at Mayo Clinic, Cleveland Clinic and Johns Hopkins. Health 2026 Delivered
09 Dr. Bochi Naturopathic practice site with a CMS, authentication, Calendly booking and email. Health 2026 Delivered
10 Global Domination Invasion Esports tournament and music festival platform with brackets, ticketing, teams and livestream. Esports 2026 Delivered
11 Staidium US Esports and sports streaming with HLS video, match schedules and team rosters. Esports 2026 Delivered
12 Esports Pitch AI-driven 3D environment renderer with a first-person viewer, AI operators and a tactical minimap. Esports · AI 2026 Delivered
13 Dion App Privacy-first social club app: Secret Admirer mode, NFC tap-to-redeem and encrypted messaging. Social 2026 In development
14 Private engagement Streaming platform across web, iOS and API. Music 2026 Private
15 Private engagement Growth analytics: retention cohorts, funnels and forecasting. Music 2026 Private
16 Private engagement Record label site with discography, radio and an audio-reactive player. Music 2026 Private
17 Private engagement Self-custody stablecoin wallet with QR payments and an agent network. Fintech 2026 Private
18 Private engagement Vessel logbooks and maintenance records for boat owners. Maritime 2026 In development
19 Private engagement Gamified social tracker with points, tiers, streaks and a leaderboard. Social 2026 In development
20 Private engagement Client web platform. Details on request. Automotive 2026 In development

03 — Open source

Code you can read.

04 — About

Sounds like a fish market. It’s a tech shop.

CARdoso + MARtinez. The studio is named for its founder, Adrian Cardoso Martinez.

Mar is Spanish for sea, so the name reads like a seafood counter. What’s actually behind the door is a studio that takes a product from first sketch to production, and builds it to look as good as it runs.

Founder
Adrian Cardoso Martinez
Founded
2024
Elsewhere
GitHub · LinkedIn

05 — Services

What we take on.

  1. 01

    Product engineering

    Web platforms and iOS apps, from the data model to the App Store. We own the build end to end, including auth, payments and deploys.

    Next.js · React 19 · React Native · Expo · Node.js · PostgreSQL · Supabase

  2. 02

    AI features

    LLM features that earn their place in a product: agents, retrieval, structured extraction and model-backed pricing.

    Claude API · OpenAI · LangGraph · MCP · Vector databases

  3. 03

    Portals & internal tools

    Client portals, admin panels and dashboards with real access control, built on top of the legacy systems you already run.

    RBAC · Row-level security · Resend · BigQuery · Cloud Run

  4. 04

    Payments & Web3

    Subscriptions, identity checks and marketplaces with royalties, plus self-custody wallets and smart contracts when the product calls for them.

    Stripe · Stripe Identity · Shopify · Solidity · viem · wagmi

06 — Process

How a project runs.

  1. Week 0

    Discovery

    Your goals, your users and the technical constraints, written down before anything is built.

  2. Week 1

    Design

    Architecture, data model, UI and a technical spec you can hold us to.

  3. Weeks 2–10

    Build

    Two-week sprints with a working demo at the end of each one. Tests and CI from the first commit.

  4. Launch

    Ship & support

    Production launch, monitoring, and ongoing support once real users arrive.

07 — Questions

Before you ask.

What's a typical project timeline?

Most projects take 4–12 weeks depending on complexity. We work in two-week sprints with regular demos, so you always see progress.

How do you price a project?

Four ways, depending on the work: a fixed price for a clearly scoped build, a monthly retainer for ongoing product work, an hourly or daily rate for open-ended work, or equity and revenue share with the right early-stage partner. Projects run from under $10k to $50k and up.

Who owns the code and IP?

It’s agreed per project and written into the contract before any work starts, so there are no surprises at handover.

Will you sign an NDA?

We handle NDAs case by case. Tell us up front and we’ll agree terms before you share anything sensitive. Client work under NDA appears in our index by sector only.

Do you work with early-stage startups?

Yes. We've taken several startups from idea to MVP, and we can advise on architecture and how to scale.

Which industries do you know best?

Sports and esports, music, insurance, fintech and health. We’ve also shipped for rentals, commerce, social, maritime, industrial and automotive clients, and we build AI features across all of them.

How do you handle communication?

Weekly syncs, async updates on Slack or Discord, and access to our project board. You get full visibility at every stage.

08 — Contact

Have something
to build?

Tell us what you're making and where it needs to be. We'll tell you honestly whether we're the right team.

Or reach us on LinkedIn and GitHub.