I have just published the first release of a connector between the Belgian fundraising platform Koalect and CiviCRM. The development has been funded by Amnesty International Vlaanderen and we are about to go into user testing.
As mentioned Koalect is a fundraising platform used in Belgium (https://koalect.com/en/). The connector currently deals with peer-to-peer fundraising where a donor can donate on a project, for example Donate for Erik's birthday or Sponsor Erik walking for Amnesty.
You can find the connector here: https://lab.civicrm.org/partners/civicoop/aivl/koalecttocivi, where you will also find more information on what the connector does in CiviCRM.