KUnifiedPush: KDE’s efficient way of delivering notifications to your apps
KUnifiedPush, KDE’s client library for the UnifiedPush protocol, has reached version 1.0.0. KUnifiedPush provides a way to deliver notifications instantly to multiple apps on your devices even if the apps are not running.
Ideal for social media, weather and instant messaging apps, it will also contribute to improving the battery life on your mobile devices.
yes https://unifiedpush.org/users/distributors/#self-host-the-server-difficult