While procrastinating at MIT in 2005, Limor Fried built her own MP3 player and shared it online, immediately inspiring others to create their own hardware. What started as a small side hustle on PayPal is now Adafruit, a wildly successful business with 100 employees and a 50,000 square-foot factory in New York. Limor, otherwise known as “Ladyada,” empowers users with the tools they need to bring their ideas to life, from mini arcade games to light-up cosplay accessories to humidity-detecting clocks. She shares her journey to Adafruit, how open source plays into the business, and why electronics engineering should be taught from the top down, now on The ReadME Podcast.