KohlerVG/FnMacTweak ? reverse-engineered prompt

Build me this Fortnite iOS tweak for Apple Silicon Macs.

I want a working macOS injection tweak that makes Fortnite feel like a real PC game, with native controller support, mouse aiming that feels as low latency as possible, keyboard and mouse remapping, and a typing mode that lets me chat without breaking the controls. It should also have a simple in game settings panel where I can change sensitivity, bindings, controller remaps, and save or export my setup.

Please make it automatically keep Fortnite at 120 FPS when the game rewrites its settings, and include the cursor lock and unlock behavior, plus the blue dot teleport cursor helper for menus and building. If the project needs any current setup details, look up the latest docs online and then wire it up so it builds cleanly from source with the existing Theos style flow.