The NLnet Foundation approves our proposal to improve the fediverse module for Drupal
Finally, we have the financing of the Next Generation Internet (NGI) program that the NLnet Foundation distributes, from the European Commission, focused on claiming the public nature of internet. It eases things and allows us to devote some time to improvements that, due to the relatively incipient nature of the protocol and the centralization of the commercial networks of big technology companies, made it difficult to be demanded, so we could extract time reserves in developments in tune with the products and services we offer.
We will work on improvements in the usability of the ActivityPub module of Drupal:
Recipe to migrate Drupal 7 Organic Groups to Drupal 9 Group
Despite there are some guides about migrating from OG to Group, as the well written https://thinktandem.io/blog/2018/03/30/migrating-drupal-7-organic-groups-to-drupal-8-group/ , and other guidelines such as https://www.drupal.org/project/group/issues/2826544 companion of https://gitlab.com/geeks4change/hubs4change/h4c/-/tree/608842e73cc02c45deede42556693a9db2a7fc37/modules_dev/h4c_migrate/config/install or https://www.drupal.org/node/2797845 . It's really adapted to your environment how you gonna carry on.
Google Structured Data docs
Google Structured Data docs