> It feels mostly in the spirit of FOSS to me

From the license at <https://github.com/HermanMartinus/bearblog/blob/998e87263248...>:

"You may not provide the Software as a hosted or managed service that offers users access to substantial features or functionality"

Given that the exclusive purpose of the Software in question is to implement a managed service for its users' hosting needs, I'm having trouble understanding how anyone could take the position that this is "mostly in the spirit of FOSS".

The license might as well say, "You just can't use this."