Have you thought of including support for Geospatial/GIS Map Data?
Specifically GeoPackage which also uses SQLite
- Vector Features - (geometry blob similar to WKB well known binary and regular attribute fields/data)
- Vector Tiles (tile_data blob GZ PBF Protocol Buffer Format)
- Both of these require support tables and metadata (GPKG_Contents, and others)
Spatialite library can read GeoPackage there is also SPL.JS WASM Web Assembly Library