launchBrowser() opens a browser workspace for DuckDB databases and data files (CSV, TSV, Parquet, JSON, Arrow) with linked maps, charts and tables.
mosaic_gl() combines Mosaic views and deck.gl layers in one htmlwidget, sharing one DuckDB-WASM instance and one selection; DuckDB-backed sources are exported by DuckDB as Arrow or Parquet, without materialising rows in R.