https://mybinder.org/v2/git/https%3A%2F%2Fgit.disroot.org%2Fbra1z%2Fbinder-nbserverproxy.git/master
http://binder.pangeo.io/v2/git/https%3A%2F%2Fgit.disroot.org%2Fbra1z%2Fbinder-nbserverproxy.git/master
https://notebooks.gesis.org/binder/v2/git/https%3A%2F%2Fgit.disroot.org%2Fbra1z%2Fbinder-nbserverproxy.git/master