# ADR 0002 — Go services and React/TypeScript web application

**Status:** Accepted baseline

## Decision

Use Go for API, worker and agent commands. Use React + TypeScript for the web application, with Vite as the default build tool unless discovery proves a stronger need for server-rendered Next.js behavior.

## Rationale

The product is a highly interactive authenticated dashboard rather than a public content site. Go provides efficient long-lived connections, concurrency and small deployable binaries. React has mature dashboard/grid/chart ecosystems. A static frontend reduces production runtime complexity.

## Consequences

- Shared contracts are generated or validated from schemas.
- API/worker/agent can share modules but deploy with separate privileges.
- An ADR is required to add a Node server runtime to production.