UnifiedPush distributor using Nextcloud server. It requires the associated Nextcloud application: https://apps.nextcloud.com/apps/uppush . The SSO login requires the Nextcloud App to work : https://f-droid.org/packages/com.nextcloud.client/ . You can also connect directly to Nextcloud. We recommend using an application password. More information about UnifiedPush at https://unifiedpush.org .