(Posting on behalf of the @SGB)
There has been a “sponsor” button on the stan-dev/stan
repo for a while now, but as of today GitHub has approved the stan-dev
organization for participating in the GitHub sponsors program.
There’s now a “sponsor” button at the top right of the main stan-dev
organization page on GitHub and also one for each of the individual repositories. Any funds that come in through the GitHub sponsors program will go through NumFOCUS.
Currently this is just a way for people to donate to Stan because we haven’t set up any “rewards”. GitHub will let us offer rewards for different sponsorship tiers, so if anyone has any ideas for what we could offer or wants to volunteer to work on that please let us know!
And thanks to @billg for applying to GitHub and dealing with this process on behalf of the @SGB. And thanks to @ariddell for suggesting this a while ago.