In these practices my work consisted of carrying out test tests and certain functionalities and then implementing them in the main app. Some of them were to create a pdf document with tables with the information they gave me, to create a function to take photos of the company's products, a function to record audio and play to save product information, a slideshow of images to present the product, create a map and perform interaction functionalities with it, etc. All of this is done in Xamarin with Visual Studio.