Pretty cool stuff, I would use it just for mirroring the data itself. Curious if you are planning to have change events for e.g. add/update/delete to the records? I would love to get them in a stream and directly dumped into a data-store like bigquery.

Yep, change events (CDC) is already supported! PeerDB replicate any DML (insert/update/delete) efficiently to the target data-store (incl BigQuery).