Investigating Cloud Optimised GeoTIFF (COG)
Javascript code to work with COG:
https://github.com/jncc/s1-s2-ard-code-list/blob/master/code/geotiffjs_example/index.html
Software/data carpentry example (using TIF and rasterio):
https://carpentries-incubator.github.io/geospatial-python/05-raster-structure/index.html