Native Linux C#/.NET Clone of TQVaultAE for Titan Quest Anniversary Edition (Avalonia UI)

I am looking for an experienced C#/.NET developer to create a native Linux desktop application that clones the core functionality of TQVaultAE (the item management tool for the game Titan Quest). The original tool is open-source and written in C# for Windows (WinForms)... (Budget: $200 - $400 USD, Jobs: .NET, .NET Core, C Programming, C# Programming, C++ Programming, Desktop Application, Game Development, Software Development)