CoderDojo Braga is a ten-year-old non-profit initiative run by CeSIUM (Computer Engineering Student Centre of the University of Minho), which aims to teach programming to children and young people aged 7 to 17. In these sessions, the Ninjas - the participating children - are challenged to solve various problems in the area of computer science, depending on their level of knowledge, always with the support of Mentors (volunteers in the initiative).