To run generate_packages.js locally, you will need to clone the bucklescript folder, preferably adjacent to
bs-platform-js folder:
git clone https://github.com/BuckleScript/bucklescript/
Then, from bs-platform-js root folder, use the BS_FOLDER environment variable to indicate the relative path from the
folder where the generate_packages script is placed, to the locally installation of the bucklescript repo, e.g.:
# `bucklescript` is a sibling folder of `bs-platform-js`
BS_FOLDER=../../bucklescript ./scripts/generate_packages.js