Weinberg and his friend, Ben Devacel, began searching for more developers to port other emulators to macOS, which led to the name change to OpenEmu in 2009, to better describe the multi-system emulator.
OpenEmu was first released on Wednesday, July 4th, 2007 as OpenNestopia, a Cocoa-port written by Josh Weinberg for then Mac OS X 10.4 Tiger of the NES/ Famicom emulator Nestopia (written by Martin Freij).
