Plyox — a production build, end to end

One of the recent builds from my independent practice, and a good picture of how I like to ship: one engineer owning web, mobile, AI and infrastructure.

what: Plyox is a workout tracker for athletes (iOS & Android) plus an AI coaching platform: the AI drafts training and nutrition plans, and a human coach reviews and signs every one before it reaches the athlete.

web: React 18 + Vite SPA with a custom prerender step — every route ships as real HTML in three languages (EN/ES/FI), with self-hosted fonts and cookie-free analytics.

app: React Native + Expo, live on the App Store and Google Play.

ai: LLM-drafted training and nutrition plans with a coach-in-the-loop review flow — the useful kind of AI: drafts fast, humans accountable.

infra: Docker multistage builds serving through nginx behind Traefik on a self-hosted VPS: real 404s, immutable caching, security headers, zero-downtime deploys.

my part: the engineering, end to end — web, mobile app, AI integration and DevOps