#Öffi will be in #fdroid very soon: https://gitlab.com/fdroid/fdroiddata/merge_requests/3454
Thanks to reproducible builds it will have the same signature as the versions from the play store and the the author's own #fdroid repo, so you can update from there.
Mein Toot der hat drei Ecken...
*pets a graph with no cycles* what a good boy. good dag.
Liberapay is in trouble, here's our blog post that explains the situation and what you should do if you're one of our 2000 active users: https://medium.com/liberapay-blog/liberapay-is-in-trouble-b58b40714d82