Open Source Swift Simulation Software

DesktopFly is a macOS experiment that places a 3D fruit fly on the desktop and drives its behavior with a live neural simulation based on the FlyWire connectome. A 668-neuron circuit with roughly 19,000 biological synaptic connections runs as a spiking simulation that influences walking, steering, grooming, and escape behavior. Cursor movement, windows, clicks, temperature, and time of day become environmental inputs. The fly can walk along window edges, fly between locations, sleep, groom itself, and react to threats. An interactive brain view displays thousands of neuron positions and lets users stimulate regions directly. The transparent overlay remains click-through so the fly can inhabit the desktop without intercepting normal input.

Control Room is a macOS application designed to give developers advanced control over Apple’s iOS, tvOS, and watchOS simulators, streamlining the process of testing and debugging apps. Built on top of Apple’s simctl command-line tool, it provides a graphical interface that simplifies complex simulator configurations and actions. Developers can manipulate various aspects of the simulated device environment, including network conditions, battery status, and system settings, without needing to manually execute terminal commands. The tool also enables tasks such as capturing screenshots and videos, sending push notifications, and simulating location changes, which are essential for testing real-world scenarios. Its integration with SwiftUI ensures a modern and responsive user experience while maintaining deep functionality. ControlRoom reduces the friction of repetitive testing tasks, allowing developers to focus more on building and refining their applications.