ES EN

Lex Laboratory / Projects / Mostrana

Mostrana

What if checking out at the corner store felt as clear as the best app?

A point of sale designed for Mexican retail: sales, stock and payments in a clear, legible interface. Currently under construction.

In development Point of sale for Mexican retail
No public site yet. ↓ Gallery

How it was built

  • 2days of building
  • 24commits
  • 83.1Klines of code
  • 193automated tests
  • 1platformsWeb (PWA offline)

First commit September 24, 2026 → Last commit September 25, 2026

Languages

Share of the in-house code by language.
  • TypeScript98.9%
  • Other1.1%

Highlights

  • Laravel 12 + Next.js 16 monorepo
  • Identity and design system focused on legibility
  • Real-time sale, checkout and stock flow

Role

Product, brand and architecture

Stack

Next.js 16 + React 19Turborepo + pnpm monorepoTanStack Query + Zustandreact-hook-form + ZodTailwind CSS 4 + Radix UI + motionSerwist + DexieLaravel 12 APIStripe subscriptions; Vitest + Playwright + Pest

Log

  1. Mostrana opens at mostrana.comThe point of sale for neighbourhood stores has a home: check out in 2 steps, track store credit and close the till to the cent.
  2. Mostrana can now ring up salesA touchscreen point of sale with cash, card, transfer and store credit, printed tickets and offline mode.
  3. Mostrana: your counter, in orderThe lab's point of sale for Mexican retail now has a name, a brand and a plan.