http://gothub.r4focoma7gu2zdwwcjjad47ysxt634lg73sxmdbkdozanwqslho5ohyd.onion/unum-cloud/usearch
The Haversine distance is available out of the box, but you can also define more complex relationships, like the Vincenty formula, that accounts for the Earth's oblateness. from numba import cfunc , types , carray import math # Define the dimension as 2 for latitude and longitude ndim = 2 # Signature for the custom metric signature = types . float32 ( types . CPointer ( types . float32 ), types .