The application of information technology is embracing a growing part of modern business. This necessitates on the one hand the development of increasingly diverse information systems and the rapid development of products for small and medium-sized businesses. An appropriate approach is to use additional packages for development environments. They help optimize the process of building one or a range of applications with similar functionality. The add-on packages extend the capabilities of the environment by either offering standard capabilities or offering entirely new ones. For some additional packages, the internal integration of the individual components is implemented, which significantly facilitates and accelerates the development of a single application. In the presentation we will present the ideology and principles of using such packages to assist developers.