Hank-gpl-compression is a project mainly written in ..., it's free.
gpl compression + hank = faster hank
This project wraps the compression implementations in gpl-compression (https://github.com/bryanduxbury/gpl-compression) with the CompressionCodec interface from Hank (https://github.com/bryanduxbury/hank), letting you use these compression implementations to compress your Hank domains.
Configure your cueball or curly domain by adding:
compression_codec: com.rapleaf.hank-gpl-compression.QuickLZ15OptimizedCodec
That's it.