React Native, Nativescript, and more recently Flutter are great for app development, but when it comes to deployment/testing, you really do have to get it on an

React Native, Nativescript, and more recently Flutter are great for app development, but when it comes to deployment/testing, you really do have to get it on an actual device eventually. In the end, you have to have something running OSX -- despite the fact that fact that frameworks like Flutter draw every pixel on the screen, you still usually need to (well should) test it on a real device.