When I joined the Ddesin project in January 2021, the primary challenge was to develop a comprehensive SaaS solution for managing architectural projects within an architecture agency. The business goals were clear: streamline the workflow, improve project version control, and enhance user experience for both technical and non-technical staff. Our customers faced several pain points, including handling large file sizes (up to 1-2 TB), a need for a unified platform for diverse file types (.dmg, .png, voice messages, texts), and maintaining high-quality rendering with minimal quality loss.