PCSX2/pcsx2 ? reverse-engineered prompt

Build me a cross platform PlayStation 2 emulator app that can load a PS2 BIOS and run games on Windows, Linux, and Mac. I want a simple desktop interface where I can open a game, change settings, manage memory cards, and use a controller without having to dig through technical stuff.

Please make it feel like a real emulator people can actually use, with good speed, sound, video, and save support, and enough polish that it is easy to launch and configure. If there are separate parts for the core emulator, the desktop app, or updater tools, wire them together so the whole project builds and runs from source.

Use current docs online if you need to, and make sure the setup is straightforward for someone who just wants to compile it and play PS2 games on their PC.