it would be nice if [DuckDB](https://duckdb.org/) was added to the list of database engines available in [dbfiddle.uk](https://dbfiddle.uk)
It's similar to SQLite (in-process, single file db) but focused on analytics rather than transactional workflows.
They attempt interesting SQL dialect changes https://duckdb.org/2022/11/14/announcing-duckdb-060.html#sql-syntax-improvements
Cool feature is being able to query remotely hosted datasets: https://duckdb.org/docs/extensions/httpfs
They already have a demo running in browser (WASM runtime): https://shell.duckdb.org/ but it's not as convenient as DBFiddle :)