Connect backend to fediverse
grouprise pursues a federated approach: For each town or region there is a distinct platform. Major drawback so far: Neither the grouprise platforms are connected in any way, nor are them connected to other platforms or networks. There has been an attempt to connect it to https://wechange.de/project/fairsync/.
One option would be to implement ActivityPub (alternatively: diaspora). This would enable connection of grouprise platforms as well as connection to the Fediverse. One would be able to follow (subscribe to or join) groups with any fediverse client. Especially, if there is an interesting group on one grouprise platform, one may follow it from their "home" platform.
As this would lead to quite many backend changes, we might want to check, if there is software out there which already does the same as grouprise (with Fediverse support). So far, I only found GNU social which has support for groups like grouprise. But it is PHP, so it might not be worth considering.