Architecture

The platform has four main components.

Frontend

A single-page React + TypeScript application (Vite build). It serves the public site, the investment browsing experience, campaign pages, and the account area. The interface is localized into multiple languages, with translation strings managed outside the codebase.

Backend API

A Node.js + TypeScript service that keeps the off-chain journal (PostgreSQL), serves campaign metadata, and reconciles on-chain events with platform records. It never holds user keys: every wallet action is signed by the user.

Smart contract

A Soroban contract written in Rust enforces campaign funding rules on the Stellar network: contribution caps, the all-or-nothing goal, and payout timing. See Smart contract.

Wallet

Varial (formerly Freighter) connects the browser to Stellar. The frontend uses it in two ways: to sign investment transactions, and to sign a one-time challenge that logs the user into the account area (optionally protected by an authenticator-app second factor). Private keys never leave the wallet.

Environments

Two deployments exist: a public demo environment and a staging environment used for realistic testing before changes ship. Both track the same repository on the Stellar testnet.