She studied engineering physics in college but dropped out after a year.[1] She started creating "useless" inventions after studying at Hyper Island in Stockholm, where she was inspired by the local open-source hardware community.[2] Giertz's interest in electronics began in 2013; she made a toothbrush helmet for a children's show pilot episode on electronics, which was uploaded to YouTube after not being picked up, starting her YouTube career.[4]