Most efficient way to load data

[robdy]

From GitHub

Risk: at some point we might hit rate limiting from GitHub
Perhaps there's a way to log the remaining number of requests and monitor it via build logs

From local .json files

Requires maintaining separate script to manage files

From local files using git client

To be tested
https://github.com/nodegit/nodegit

[robdy]

Currently using local files for almost everything. Introduced in #76