$1 is the lowest amount I have seen by clicking the big blue "Start Sponsoring" button and then making it to https://github.com/users/dominikh/sponsorship https

$1 is the lowest amount I have seen by clicking the big blue "Start Sponsoring" button and then making it to https://github.com/users/dominikh/sponsorship https://github.com/users/dominikh/sponsorship. So it appears users can choose their own levels, I do wonder what the minimum is.