![](https://discuss.tchncs.de/pictrs/image/b0fc4747-383c-46a0-8e2a-08f82035b43d.jpeg)
![](https://lemmy.world/pictrs/image/8286e071-7449-4413-a084-1eb5242e2cf4.png)
Yes, XMPP with proper TLS on the server side and Conversations or one of its forks (preferably fetched from F-Droid) using OMEMO encryption should be good enough. If you are brave or paranoid, give Tox a try: https://tox.chat/
Yes, XMPP with proper TLS on the server side and Conversations or one of its forks (preferably fetched from F-Droid) using OMEMO encryption should be good enough. If you are brave or paranoid, give Tox a try: https://tox.chat/
Maybe the first question is what your budget is, both regarding money and time. For example, you could buy a pre-configured NAS from Synology or QNAP, which requires less technical skills but more money, or a home-made solution reusing used components (but fresh disks for reliability). Depending on your electricity costs, you may want to choose a low-power solution or something which you power off when not used. For storage, maybe a three-disk RAID5 is a good compromise. For backups, plain S3 cloud storage encrypted via restic is a good idea.
Mal als Beispiel wie das in anderen Ländern (Schweden) gemacht wird:
Das da ein freundlich-lächelnder Mann in rot steht, ist nur fürs Pressefoto. Normalerweise Selbstbedienung. Der ganze Apparat kan in der Höhe eingestellt werden. Vorne die Fläche ist für eine digitale Unterschrift, die auf die Karte gedruckt wird. Bezahlt wird dann per Bank/Kreditkarte. Alles papierlos.
KDE Connect has been mentioned before. You can supplement this and other tools by using a VPN so that both endpoints can see each other even if the underlying network does not allow this. My preferred solutions are Tailscale (managed, cloud-based) or Headscale (for self-hosting).