JIDs are simply user@xmpp.example.com — the app's own domain is the XMPP host, which sidesteps the apex-certificate problem that stalled earlier XMPP-on-Cloudron efforts. Real certificates on the XMPP ports come from the tls addon, logins from the ldap addon, and calls work through NAT via the turn addon.

Links

• Project: https://prosody.im — docs: https://prosody.im/doc/
• Package: https://github.com/OrcVole/prosody-cloudron
• Image: ghcr.io/orcvole/prosody-cloudron (pinned by digest in the versions file)

How to install

From the dashboard: click Add custom app (top right in the App Store), choose Community app, and paste this URL:

https://raw.githubusercontent.com/OrcVole/prosody-cloudron/main/CloudronVersions.json

Or from the CLI:

cloudron install --location xmpp \
  --versions-url https://raw.githubusercontent.com/OrcVole/prosody-cloudron/main/CloudronVersions.json

Then add the group-chat component as an app alias so federation gets its own trusted certificate:

cloudron configure --app xmpp.example.com --alias-domains conference.xmpp.example.com

Log in from any XMPP client with your Cloudron username (or email) and password. If login fails as if the password were wrong, enable SASL PLAIN / "allow cleartext auth" in the client — safe here, TLS is required first.

Status

Running in production since June; verified on Cloudron 9.2.0. Scores 91% on compliance.conversations.im with Prosody 13.0.6 stable. Chat, MUC federation on CA-trusted certs, file upload, multi-device sync and TURN-relayed calls all verified.

Caveats

• Calls are server-ready, but mobile/macOS XMPP calling clients are still immature — Linux desktop (Dino/Kaidan) is the proven path today.
• If your server sits behind a cloud security group, ports 5222/5223/5269 (TCP) plus the TURN ports (3478/5349 and the UDP relay range) must be reachable from the internet.
• Prosody is a backend service — the app's web address intentionally shows no UI.

Unofficial, community-maintained package. Longer technical write-up (packaging notes, cert discovery, what bit us) in the existing XMPP thread: https://forum.cloudron.io/topic/10465/xmpp-server-prosody