Mirror Lake Kusto is a Command Line Interface (CLI) tool allowing you to keep an Apache Delta Lake table and a Kusto Table in sync so the Kusto table becomes a mirror of the Delta table.
There are many options and authentication methods, but a straightforward example is:
mirror-lake-kusto -s <Delta Table ADLS folder URL> -k <Kusto Cluster Query URL> -d <Kusto DB> -t <Kusto Table> -c <Checkpoint ADLS folder URL>
The CLI will keep the two tables in sync by ingesting and deleting data in Kusto. No duplication, no data loss.