I wanted to play with val.town and Beeminder provided the case
Take a look! Give it a try!
For now it’ll just get all issues of a repository. So if you e.g. have a repository that should feed into two goals, that’ll be tricky.
val.town has some social features, so you can “remix” (similar to forking on GitHub) your own solution for that, if that’s useful for you
(I’m pretty impressed by val.town, without any affiliation I think it already has become the go-to tool for deploying JavaScript code for me.)