Looks like there's some data being fetched here that could be useful:
https://github.com/TripSit/factsheets/blob/058f9efde34de0a61d1530781f3513046ddb814a/routes/index.js#L129-L130
Both JSON files. There's more detail in that file that likely explains how the additional data which is not included in the combo_beta.json file is generated...
Looks like there's some data being fetched here that could be useful:
https://github.com/TripSit/factsheets/blob/058f9efde34de0a61d1530781f3513046ddb814a/routes/index.js#L129-L130
Both JSON files. There's more detail in that file that likely explains how the additional data which is not included in the
combo_beta.jsonfile is generated...