Participation in the classes was free and required only registration. Free sharing of knowledge is one of the hallmarks of ŁDI. Every year, companies associated in ICT Klaster Polska Centralna delegate their best experts to infect students and high school students with a passion for computer science. During the event, IT plays the first violin, and the number of industries in which it is necessary is constantly increasing. The event gathers everyone interested in working and developing in the IT industry. Programmers, testers and administrators have a valuable opportunity to exchange knowledge here, but people who manage projects and care about friendly UX/UI also find something for themselves.