Also, what about adding the DuckDB JSON extension in the lakeFS web interface?

Hi @Giuseppe Barbieri, the best way to offer functionality to lakeFS is to open a GitHub issue. The community votes to support the most needed issues and those are delivered. As I mentioned before, you are free to offer a contribution in case the issue you propose doesn't get the priority you need. To get your issue enforced by other community members, it is important to specify the use case and the value of the features you offer. We really appreciate community feedback. It's the best way to continue improving lakeFS!