This repository was archived by the owner on Oct 22, 2025. It is now read-only.

Description
We are probably doing something inefficient - needs profiling. Might be loading large data files?
If it can't be sped up, let's at least acknowledge this in the UI with an 'in progress' indicator, and something to avoid the button being re-clicked (which is a textbook example in some book I was reading on Functional JS :)