This document aims to provides a geospatial extension to the Zarr specification. Zarr specifies a protocol and format used for storing Zarr arrays, while the present extension defines conventions and recommendations for storing multidimensional georeferenced grid of geospatial observations (including rasters).
It would be good to add a license to this project. I suggest making it match the core spec license: cc-by-3
https://github.com/zarr-developers/zarr-specs/blob/main/LICENSE.txt