The author created a wireless microcontroller board called the nice!nano, which powers tens of thousands of keyboards and has inspired many. The board was designed in a weekend and initially produced at a cost of $100 for five units. The author's company, Typeractive, now sells the nice!nano and other keyboard-related products, with over 50,000 units sold, representing over $1 million in sales. The author attributes their success to a combination of hard work, luck, and good timing.