TileDB and Hail are rather complementary. We have customers that use TileDB to store and manage their variants, and Hail to perform GWAS (by exporting from TileDB to Hail format). We are currently designing a tighter integration with Hail. This expands on our vision for a universal data engine that integrates with pretty much everything out there and does not lock you in a single framework (e.g., Spark).