# SNYT ERP — Architecture Decisions

- Separate Laravel/Flutter repositories and source directories.
- Per-customer installation with isolated database and configuration.
- Multiple legal entities may exist within one customer installation.
- No changes to existing production Catalog or Van apps.
- Protect `.env`, secrets, credentials, and signing keys; never commit them.
- Mobile App Manager requests builds from a separate central build service.
- Keep financial/inventory operations transactional and auditable.