A browser-only DuckDB-WASM playground
that queries the v8 Marine Atlas Parquet directly on S3 — no server, no download. Pick an
example or write your own SQL; it runs against the public
read_parquet('…/marine-atlas/v8/tables/*.parquet') tables documented on the
schema page. First run cold-starts the WASM
engine (~5 s), then it's fast (DuckDB range-reads only the bytes it needs).
idle