Vinted's design system introduces Bloom Greenhouse, an innovative extension designed to bridge the gap between stable core components and the evolving needs of product teams. While the core system ensures high-quality, polished standards, the Greenhouse acts as an "incubator" for experimental, reusable UI components. Housed in shared libraries across platforms, it enables teams to contribute, discover, and reuse custom solutions. This approach prevents duplication, strengthens consistency, and accelerates delivery while maintaining governance. Bloom Greenhouse transforms isolated design efforts into a collaborative, organisation-wide asset.

The strategy behind Bloom Greenhouse was rooted in extensive user research with designers and engineers to identify pain points around duplication, inefficiency, and fragmentation. Instead of viewing custom work as a liability, the team reframed it as an opportunity for collective growth. By introducing a semi-governed space between the design system and individual teams, Bloom Greenhouse offers visibility, discoverability, and support for reusable UI patterns. A dedicated preview website aggregates components into a searchable visual interface, ensuring accessibility and inspiration. Adoption is encouraged through clear communication, guidance, and collaborative governance: the system team manages the platform, while creators retain ownership of their contributions. This approach balances the tension between quality and speed, creating a scalable model that encourages innovation without sacrificing consistency.

Although in early stages, Bloom Greenhouse is already reshaping design and development workflows. Teams now have a central space to share and reuse components, significantly reducing duplication of effort and improving delivery speed. Designers and engineers benefit from greater visibility and alignment, leading to a more cohesive user experience. For the design system, it provides a data-driven pathway for promoting widely adopted patterns into the core system. Long term, this initiative aims for full adoption, stronger collaboration, and a culture of inner-sourcing—ultimately driving higher quality, faster delivery, and a more consistent user interface across products.