ares
ares is a cross-platform, open source, multi-system emulator
...This makes it particularly valuable for researchers, developers, and preservationists who care about hardware accuracy and maintainability. The emulator supports multiple gaming systems and includes its own custom frameworks for GUI, threading, and hardware abstraction. It also integrates a ROM database and flexible configuration system, enabling users to load and manage game content efficiently. By focusing on clarity and correctness, Ares contributes to the long-term documentation and preservation of legacy systems.