# ADR 0007 — Dutch default, localization-ready architecture

**Status:** Accepted baseline

## Decision

Ship user-facing v1 flows in Dutch (`nl-BE`) and use localization keys/contracts so English can be added without rewriting components.

## Rationale

The primary user is Dutch-speaking, while code and technical contracts benefit from stable English identifiers.

## Consequences

- No hardcoded scattered UI copy.
- Tests cover missing translation keys.
- Dates/numbers use locale and Europe/Brussels display defaults while storage remains UTC.