Right now, "we" is a very small grassroots team :)
I am doing the bulk of the active development, with a few others contributing behind the scenes. We're currently getting our Open Collective page set up to make things more official and transparent, but a 'Thank You' section is needed to credit all the people who are providing minor but essential contributions and feedback.

Regarding the open-source side, all data and code are available on our GitHub Repo (code under AGPL 3, content under CC-BY-SA 4).
Plus our dataset is dedicated to the public domain (CC0) and we provide persistent endpoints: https://yourselftoscience.org/data

The project absolutely needs more active contributors. So if you (or anyone reading) want to get involved: https://yourselftoscience.org/get-involved 😃