Flutter uses the tools built on top of this to automate the installation and bootstrap into their interactive code reload mechanism (by watching the device's syslog for the application to output the right port to connect to, which is then also accessed over the USB muxing bridge: libimobiledevice provides a way to activate the port mappings) for iOS apps you develop.

Essentially, this is giving you the ability to write tools similar to Android's adb (Android Debug Bridge), a tool that connects over USB to a daemon running on the phone to let you run commands and install apps and access the logs (which I take advantage of in Cydia Impactor, generalizing over the functionality of an integrated adb client and the functionality from libimobiledevice).