duckdb exposed by buenavista proxy and accessed with psql

duckdb_buenavista_psql.sh

# start a proxy server for a duckdb in-memory db, using the postgres wire format
docker run -it --rm -p 8080:5433 -e BUENAVISTA_HOST=0.0.0.0 -e BUENAVISTA_PORT=5433 ghcr.io/jwills/buenavista

# somewhere else (or here on the same host), start psql to issue a query against the proxy server
docker run --network host -it --rm postgres:latest psql -h $(hostname) -p 8080 -c "select 42"