Jabberia and the Pumpiverse
Developer of the Dianara pump.io client. Mageia GNU/Linux + KDE Plasma user. I also use Debian GNU/Linux and Archlinux. Jabber/XMPP chatter, Pumper, C/C++/Qt coder. Pump.io User Guide: https://pumpio.readthedocs.io/en/latest/userguide.html DISCLAIMER: The views and opinions expressed here are those of my next door neighbor.
AndStatus project at Datamost AndStatus@datamost.com
Open Source multiple accounts client for multiple Social networks, including GNU social, Mastodon, Twitter and Pump.io. AndStatus can combine your feeds from all networks into one Timeline, and it allows you to read and post even when you are offline. For Android v.7.0+ devices. http://andstatus.org