How can you locally run and test a project on a mobile device?

To locally run and test an iOS project on a mobile device, you need to follow these steps:

1. Connect your iPhone or iPad to the computer via USB.
2. Open the project in Xcode and select the connected device from the list of devices.
3. Ensure that the correct developer profile (Apple Developer Account) is selected in the project settings and that the device is added to the provisioning profile.
4. Click the run button — Xcode will build the app and install it on the device.
5. After installation, the app will launch on the device, and you can test it in real conditions.

It is important that the device is trusted by the computer and has permission to run applications from your developer account.