Nothing quite shows how deserving one is of filling a responsible role than dragging personal conflicts into the public and - without providing proper context - blaming other people for it.
My congratulations to Hans; as it turns out, he has done the F-Droid project yet another excellent service.
One of the best alternatives I found is using dokku with a cheap VPS. Dokku even has herokuish buildpacks and supports (automated) deployment of docker images etc. On top of that dokku is open source with a very helpful community, total cost: 0$.
Not looking back at all.
My congratulations to Hans; as it turns out, he has done the F-Droid project yet another excellent service.