With all the opportunities and risks that technology holds in connection to our safe and sustainable future, it is becoming increasingly important to involve a larger portion of our society in becoming active co-creators of our digitalized future -- moving from the passenger seat to the driver seat. Yet, despite extensive efforts around the world, little progress has been made in growing the representation of certain communities and groups in software engineering. This chapter shares one successful project, called Czechitas, triggering a major social change in Czechia, involving 1 000+ volunteers to support 50 000+ women on their way towards software engineering education and career.