Carlos Zamboni Completes Full AWS Removal and Achieves 100% SQL-Based Infrastructure for BR Node

Sorocaba, Brazil — Carlos Zamboni has successfully completed a major infrastructure milestone with the full removal of AWS and DynamoDB from the BR node, consolidating the entire backend into a streamlined, SQL-based architecture.

This achievement marks a significant advancement toward a fully independent, local-first infrastructure model. Zamboni eliminated all DynamoDB dependencies, removed AWS SDK packages, cleaned legacy routes, deleted unused AWS-based frontend components, and updated documentation to reflect the platform’s new architecture.

The BR node now operates entirely on MariaDB, running independently from any cloud provider.

Strengthened Financial Integrity Through Atomic Architecture

A key component of this accomplishment was the refactoring of the transaction lifecycle to ensure strict domain semantics and financial consistency.

Under the new architecture:

• Ratings no longer finalize transactions.

• Escrow release now atomically unlocks funds, credits the seller, and marks the transaction as completed within a single SQL transaction.

This guarantees that financial operations cannot enter partial or inconsistent states.

Zamboni also implemented atomic wallet debit and credit operations using row-level locking and SQL transaction controls. These safeguards prevent race conditions, double ratings, and duplicate escrow releases — ensuring robust wallet integrity across the system.

Federation Fully Preserved

Importantly, federation capabilities remain fully operational using the new SQL-based infrastructure. The BR node now synchronizes end-to-end without any dependency on AWS services.

A Fully Independent Node

With this milestone, the BR node now runs:

• 100% on MariaDB

• Atomic escrow operations

• Secure wallet integrity controls

• Consistent rating flow

• Federation synchronization

• Zero cloud dependency

Carlos Zamboni’s work represents a decisive step toward resilient, sovereign infrastructure and reinforces the technical foundation of the BR node moving forward.

Congratulations to Carlos Zamboni of Sorocaba, Brazil, on this exceptional engineering achievement.