Firebird

Trysil is a lightweight, attribute-driven, open-source ORM for Delphi. It supports Firebird, InterBase, MariaDB, Oracle, PostgreSQL, SQL Server and SQLite through FireDAC, with lazy loading, change tracking, soft delete, optimistic locking, JSON serialization and a REST HTTP module with JWT. Version 2.0.0 contains breaking changes: see https://davidlastrucci.github.io/Trysil/guide/upgrading/

Trysil is an Object-Relational Mapper (ORM) for Delphi, open-source (on GitHub), that simplifies database management, allowing you to define entity classes and map them to DB tables (Firebird, PostgreSQL, SQLite, SQL Server), handling queries, inserts, and updates through a TTContext, also supporting lazy loading and events. To use it, you need to download it from GitHub (search for the davidlastrucci/Trysil repository) and integrate the code into your Delphi applications to map your classes to the data.