Água Nativa is a multi-tenant SaaS platform designed for the professional management of rural water associations.
The platform provides a modern digital infrastructure that allows associations responsible for community water distribution to manage customers, properties, meters, readings, billing, payments and operational transparency in a reliable and scalable way.
The project is being built using enterprise engineering practices, focusing on architecture quality, maintainability, security and long-term system evolution.
Água Nativa is not intended to be a simple internal tool. It is being designed as a robust SaaS platform capable of supporting multiple water associations while maintaining strict data isolation between tenants.
Many rural water associations still operate using spreadsheets, notebooks or fragmented systems to manage essential operations.
This typically leads to problems such as:
- inconsistent billing
- weak consumption traceability
- manual and error-prone operational workflows
- difficulty auditing financial records
- lack of operational transparency for members
- limited ability to scale management practices
Água Nativa aims to solve these challenges by providing a specialized platform designed specifically for community water distribution management.
The objective is to bring professional system capabilities to associations that currently operate with limited technological infrastructure.
The platform is designed to support the full operational lifecycle of rural water associations.
Core capabilities include:
- association management
- customer lifecycle management
- property and unit management
- water meter lifecycle tracking
- meter reading operations
- water consumption calculation
- tariff and pricing configuration
- invoice generation
- extra charges for future billing cycles
- payment tracking and reconciliation
- operational notifications
- reports and analytics
- full operational audit trail
Água Nativa is designed as a multi-tenant SaaS platform from the beginning.
Each water association operates as an independent tenant within the system.
This architecture guarantees:
- strict data isolation between associations
- tenant-scoped users and permissions
- independent operational environments
- isolated financial records and billing cycles
- tenant-level auditing
Every domain entity references its tenant, and tenant validation is enforced across the system.
This design allows the platform to scale to support many associations without compromising data isolation or operational integrity.
The system is structured around four main interfaces.
Central environment responsible for global platform administration and long-term SaaS governance.
Operational interface used by association staff to manage daily activities such as customers, meters, readings, invoices and payments.
Mobile application used by field operators to register water meter readings.
The application is designed to support offline-first workflows with later synchronization.
Application used by consumers to access invoices, payment history, notifications and consumption information.
The platform follows a layered architecture designed to enforce clear separation of responsibilities.
- Presentation Layer
- Application Layer
- Domain Layer
- Persistence Layer
- Infrastructure Layer
This architecture improves maintainability, testability and scalability.
The system is also being designed with clear module boundaries so that future evolution does not create avoidable technical debt.
- Next.js
- TypeScript
- React
- Node.js
- TypeScript
- NestJS
- PostgreSQL
- Supabase PostgreSQL (initial platform preference)
- React Native
- AWS
- Docker
- Amazon S3
apps
backend
frontend
infra
scripts
docs
This repository structure separates application code, infrastructure configuration and documentation to support long-term maintainability.
The project follows a documentation-first and architecture-first approach.
Documentation is maintained under the /docs directory.
docs/
├─ adr
├─ api
├─ architecture
├─ database
├─ devops
├─ modules
├─ rfc
└─ security
Existing documentation includes architecture definitions, database models and architectural decision records.
- system-overview.md
- multi-tenant-strategy.md
- platform-architecture.md
- cloud-architecture.md
- conceptual-model.md
- water-domain-model.md
- core-entities.md
- integrity-rules.md
- logical-model.md
- physical-schema.md
- �dr/0001-multi-tenant-architecture.md
The project follows strict engineering principles:
- architecture defined before implementation
- documentation before system expansion
- prevention of avoidable technical debt
- strong module boundaries
- traceable architectural decisions
- security by design
- controlled system evolution
The objective is to build a platform that can evolve without architectural degradation.
The project is currently in the architecture and system definition phase.
Current focus areas include:
- domain definition
- architectural consolidation
- database modelling
- module boundary definition
- documentation strengthening
Implementation will progress once the architectural foundation is sufficiently stable.
Upcoming work includes:
- service architecture definition
- backend module structure
- authentication and tenant isolation mechanisms
- billing engine implementation
- mobile application foundations
- infrastructure automation
Água Nativa is being developed as a serious software platform with SaaS potential, multi-tenant discipline and enterprise engineering standards.
The long-term goal is to build a reliable digital platform capable of supporting many associations while maintaining professional operational standards and strong architectural foundations.