Tech Stack

The stack we build real products with.

One Peak ships web and mobile products end to end. These are the core technologies behind our work — chosen because they let a compact team move fast without trading away architecture or reliability.

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Frontend & web

Production web apps with SEO performance and a clean component system.

Next.js — SSR, SEO, and full-stack in one framework
React & TypeScript — component-based, type-safe UIs
Tailwind CSS — consistent, utility-first styling

Mobile

Cross-platform apps that feel native, from one codebase.

React Native — iOS and Android from shared code
Flutter — pixel-perfect, multi-platform builds
Native iOS where it matters

Backend & AI

Backends that go live in days and AI features users actually use.

Supabase — Postgres, auth, realtime, storage
Node.js & REST APIs — integrations done right
OpenAI & Claude — practical, scoped AI features

Practical answers

Questions founders ask before moving forward.

Do you only work with these technologies?

These are our defaults because we know their edge cases and can move fast on them. We pick the tool to fit the product, not the other way around.

Can you join an existing codebase?

Yes. We regularly extend existing products — adding features, fixing architecture, or integrating new services — as well as building from scratch.

Continue through the cluster.

Frontend · Next.js

Next.js Development

Next.js development by One Peak — production-grade web apps with SSR, SEO performance, and scalable architecture, shipped fast.

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Mobile · React Native

React Native Development

React Native development for startups — iOS and Android from one codebase, native feel, real architecture, shipped fast by One Peak.

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Mobile · Expo

Expo Development

Expo development for startups — React Native apps with managed builds, over-the-air updates, and store submission handled, shipped by One Peak.

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Mobile · Flutter

Flutter Development

Flutter development by One Peak — beautiful, fast, cross-platform apps from a single Dart codebase across iOS, Android, and web.

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Mobile · Native

Native iOS & Android (Swift / Kotlin)

Native iOS and Android development in Swift and Kotlin — for products that need deep platform integration, built by One Peak.

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Backend · Supabase

Supabase Backend Development

Supabase backend development by One Peak — Postgres database, auth, realtime, and storage wired to your product in days, not weeks.

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Backend · Firebase

Firebase Development

Firebase development for startups — auth, Firestore, push notifications, and analytics wired into web and mobile MVPs by One Peak.

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Payments · Stripe

Stripe Integration

Stripe integration for startups — subscriptions, marketplaces, and usage billing built into MVPs with webhooks and edge cases handled, by One Peak.

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AI · OpenAI

OpenAI Integration

OpenAI integration by One Peak — add GPT-powered features to your product without building an AI team. Scoped right, shipped fast.

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AI · Agents

AI Agent Development

AI agent development for startups — LangGraph, OpenAI, and Claude agents with tool use, guardrails, and evaluation, built by One Peak.

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Next step

Not sure which stack fits your product?

Tell us what you're building and we'll recommend the leanest stack to ship and validate it.

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