Gilmar Ferrari Filho | Portfolio

Collapsus: Lost Legacy

About the project Collapsus: Lost Legacy is a 2D adventure prototype that combines environmental puzzles, exploration, tactical combat and resource management. Players investigate hostile rooms, recover ancestral relics and make consequential choices while racing against time.

Originally conceived as an escape-room game, it grew into an experimental playground for interconnected mechanics, including progression, changing world states, multiple difficulty modes and limited ammunition. Development concluded in 2022, and version 0.18.2 remains available as a public snapshot of that learning process.

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Syntonalité

About the project Syntonalité is a private, local-first personal organizer built with Flutter and Dart. It combines tagged and searchable notes, master-key-protected account credentials, entertainment watchlists, and detailed investment tracking—including positions, monthly closings and Brazilian tax calculations.

All data stays on the device in SQLite. Credentials are protected with AES-GCM and PBKDF2-derived keys, while import/export tools and automatic daily backups provide portability and recovery. The interface also supports light and dark themes plus English, French and Brazilian Portuguese.

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Borealis

About the project Borealis is a retro-inspired endless 2D platformer built with Unity and C#. Each run assembles platforms procedurally and increases their speed as the score rises, turning simple movement into a progressively tighter timing challenge.

Players can jump, perform an aerial dash and collect temporary gravity-altering potions. Persistent high scores, unlockable sceneries, responsive animation and audio, and a compact save system round out a small project focused on procedural generation and arcade-style progression.

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Conduit

About the project Conduit is a real-time messaging backend built with ASP.NET Core and .NET 9. It supports direct messages, group conversations, participant management, delivery and read states, and live presence updates through SignalR.

The API uses JWT authentication with refresh and revocation flows, role-based authorization, rate limiting and password-recovery services. Its layered architecture separates domain, application, infrastructure and API concerns, using EF Core with SQL Server, MediatR, AutoMapper, Quartz jobs and Swagger.

Async

About the project Async is a browser-based HTTP client built with Angular and Angular Material. It can compose GET, POST, PUT, PATCH and DELETE requests with query parameters, JSON or file payloads, bearer-token authorization and formatted response output.

Requests are stored locally in a date-grouped history that can be replayed, shared through prefilled URLs, or imported and exported as JSON. The application also supports repeated requests and a multilingual interface, making this Postman-inspired experiment a compact toolkit for testing APIs.

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