For the past few years, we have been working diligently to create a modern and full-fledged platform for conducting programming competitions. Back in 2020, we created our first version of the system in order to hold the All-Ukrainian Olympiad in Informatics. Since then, we have held more than two thousand competitions of various sizes: from educational competitions in classes and training camps to international Olympiads with thousands of participants. In total, more than 160 thousands participants took part in these competitions, and they submitted more than a million solutions.