Learn how to build and implement real-time analytics dashboards in this 26-minute conference talk from OSACon. Explore the layered architecture of data visualization systems, from data collection through metrics computation to insights delivery. Follow along with a practical IoT dashboard implementation using open-source technologies while examining each architectural component in detail. Discover common challenges in creating visually appealing real-time dashboards and strategies to overcome them. Master the fundamentals of data pipeline construction, large-scale data processing, and timely metric delivery to create dashboards that enable users to act on fresh, relevant insights.