Source opened and integration of hiveiceberg

1.intersted in dremio and like to take part in this open sourced commnity.
but not that sure dremio is completely open sourced by having lots of customized dependencies like arrow-memory-core-4.0.0-20210303080849-4e6380d754-dremio.
2. once read a post about hiveiceberg integration on but till now, there is not any sign that dremio is going to support hiveiceberg. i tried customized dremio by import iceberg-0.10.0, it works on parquet data, but not on orc for hvie plugin’s dependency on orc-1.5.1-dremio.