rigami.
/// Build with

The stack
we ship on.

Twelve technologies we use in production every week. Pick one and see how we deploy it — with the case studies, performance budgets and architectural choices behind each.

/// Mobile
/ Cross-platform mobile

React Native

We build production React Native apps that ship on the App Store and Play Store with native-grade performance, deep-linking, push, in-app purchases and offline-first state.

/ Native iOS

iOS / Swift

Swift, SwiftUI, modern concurrency.

/ Native Android

Android / Kotlin

Kotlin, Jetpack Compose, modern Android architecture.

/ Cross-platform UI

Flutter

When the product is the brand, we reach for Flutter.

/// Web
/ React, server-first

Next.js

Next.

/ UI engineering

React

Hooks, suspense, server components, and the patterns that hold up in production.

/// Backend
/ Server runtime

Node.js

TypeScript-first Node services with clean module boundaries, observability and the performance budgets that production demands.

/ AI-friendly server

Python / FastAPI

When the back-end is half AI pipeline, half API, FastAPI is our default.

/// Data
/ Database

Postgres

We start with Postgres and only leave when we have to.

/// AI
/ Frontier LLM

OpenAI (GPT-5, GPT-4o)

GPT-5, GPT-4o, embeddings, vision, voice and Realtime.

/ Frontier LLM

Anthropic Claude

Claude is our default for agentic, long-context, tool-using workflows.

/ Frontier LLM

Google Gemini

Gemini 3 for large-context multimodal reasoning and Gemini Nano Banana for image generation — wired into product surfaces with the right cost ceilings.