The document discusses internal development (internalization) and provides tips to address its challenges. It explains that internalization has benefits like creating the most suitable systems and moving faster. However, it requires having or hiring people with the right skills, and understanding the business. Selecting what to internalize, like design, development or operations, is important. Connecting existing solutions and reducing what needs to be built can help address challenges like hiring and education. Understanding the perspective of business teams can also help create the right systems.