Community building is crucial for modern companies to create a loyal user base, drive organic growth, and foster a sense of belonging among users. The author's experience at Notion as Head of Community helped build and nurture a global community from the ground up, with a significant impact on the company's growth. The key component was organic growth fueled by passionate users worldwide who loved Notion, showcasing user-generated content and encouraging collaboration through initiatives such as the template gallery and ambassador program. Measuring success can be challenging, but engagement metrics like participation levels, geographic expansion, and automation of tools can provide insights into community building efforts. Building a thriving developer community requires strategic planning, hands-on engagement, and using essential tools and automation to keep members engaged. The author's experience highlights the importance of dedication, patience, and a genuine commitment to users in creating a strong and engaged community that contributes to overall growth.