Round 4 info Round 4 will end on 2026 january 8th in this round, this is your chance to show what your OS can truly do. you are tasked to make your apps make at least five apps with there being a calculator app, music app, paint app, files app, and much more make sure you make as much apps as possible, and you should ither make your apps fullscreen, or make it in rezizizble window managers.