tl;dr: dbt Labs is open-sourcing dbt Charts, a declarative YAML+SQL language for defining interactive dashboards as code, positioned as a middle ground between messy agent-generated frontend code and rigid BI UIs. Boards live alongside dbt models in Git, integrate with `ref()` and (soon) the Semantic Layer, and can be rendered locally to SVG/HTML/PNG/PDF via CLI. A hosted platform, dbtCharts.com, is also launching in public beta with conversational analytics, access control, and a visual editor on top of the open language.