During June 2025, Tomas focused on enhancing the stability and type-safety of the ORM layer in the graphprotocol/indexer repository. He addressed a critical TypeScript declaration shadowing issue in Sequelize models by replacing the 'public' keyword with 'declare' across CostModel, IndexingRule, and POIDispute classes. This change improved type inference and reduced the risk of runtime property access errors, directly contributing to the reliability and maintainability of the indexer’s data models. Tomas utilized his expertise in Node.js, TypeScript, and Sequelize to deliver a targeted bug fix that streamlines future development and strengthens the foundation for extending the model layer.