I'd check out the Slack, which is where I've seen a few projects integrating it coordinating. I think DuckDB is one of the projects that has the best support f

I'd check out the Slack, which is where I've seen a few projects integrating it coordinating. I think DuckDB is one of the projects that has the best support for executing Substrait query plans. I think for most other projects there are some forks with substrait support (e.g. datafusion) but nothing merged to upstream yet. I'm not sure if there are any systems where it is integrated and yields tangible benefits yet (though there is decent progress on common tooling, so that shouldn't be too far in the future).