David Navarro

Personal projects

Things I’ve built for fun, for friends, or to learn something.

A mix of production apps, R&D experiments, and older work that covers most of what I touch: full-stack web, mobile, ML, DevOps tooling, and pre-AI-era frontend.

Most repos are private. Each card has either a live demo or a Request access button that pops open an email draft. Fill in your details and I’ll grant read access when I can.

Squadra

World Cup 2026 quiniela web app for friends.

Production
Full-stack web2026Private source

A real production app: a prediction-pool platform for a private group to compete during the 2026 FIFA World Cup. Auth, RLS, realtime, internationalization, the whole thing. Currently in active use.

Source is private (production app for a closed group).

Next.js 16 (App Router)React 19TypeScriptTailwind v4Supabase (Auth, Postgres, Realtime, RLS)next-intl (ES/EN)Vercel

Astra DevOps

Opinionated Internal Developer Platform for production-grade AWS.

Active development
DevOps tooling2025-2026Private source

An IDP that gives startups the deployment workflows and operational maturity of a mature platform team, without having to staff one. Infrastructure runs in the customer's own AWS account; Astra provides the control plane.

Combines everything I do day-to-day at work into one packaged product: IaC, deploys, observability, security baselines.

TypeScriptNext.jsTerraformAWS (multi-account)ECS / EKS

Xtock

ML model that predicts the stock market from X (Twitter) posts.

Active development
Machine learning2025Private source

Trains and serves a model that ingests posts from X and tries to predict short-term stock movement. Experimental sandbox for ML inference, fine-tuning, and MLOps patterns.

Personal R&D project for exploring inference latency and model serving.

JavaScriptPython (training)HuggingFaceVercelX API

Stylistic

Cross-platform fashion app: mobile frontend with a Rails backend.

Archived
Mobile2024Private source

React Native (Expo) mobile app backed by a Ruby on Rails + Postgres API. End-to-end CI/CD via CircleCI deploying the phone build and the backend to Render. Demonstrates mobile dev plus full-stack ownership.

Mobile app. No public web demo, but screenshots available on request.

React Native (Expo)Ruby on RailsPostgreSQLCircleCIRender.com

Generational Pictures

Static brand site for a photography studio. Built before the AI boom.

Production
Frontend2023-2024

React + Tailwind static site I designed and coded with a collaborator for a photography brand. The first real frontend project I shipped end-to-end, and a useful proof point that the React and UI work predates the current AI tooling era.

ReactTailwind CSSNoCode FormGitHub Pages

Want to talk through any of these?

Happy to walk through architecture, trade-offs, or the messy parts.