Install: add this catalog under Settings → Community apps, then install opendesk from the App Store:

https://raw.githubusercontent.com/marcusquinn/cloudron-opendesk-app/main/CloudronVersions.json

or cloudron install --versions-url <that URL> --location support.example.com.

What fits in with Cloudron

• Single sign-on: sign in with your Cloudron account; the app's access control decides who gets in. Password registration is off.
• Platform email (sign-in links, invitations, notifications) goes through the Cloudron mail relay.
• Support mailboxes on Cloudron Mail: add support@yourdomain with its Cloudron password and the IMAP/SMTP settings fill in. The connection stays on the internal network (no hairpin through your public IP), TLS is still verified, and opendesk's SSRF guard stays on for every other host. Aliases work too.
• PostgreSQL addon and /app/data, so everything is in Cloudron backups.
• AI, your choice of provider: Anthropic, OpenRouter or any OpenAI-compatible API, including fully private local models: the README walks through running LM Studio on your own computer and reaching it from a Cloudron VPS over NetBird, with access locked to the one server. (AI setup guide)

Good to know

• opendesk can also receive mail by forwarding to <token>@your-inbound-domain, but that needs its SMTP listener on port 25. The package doesn't open that, so the mailbox dialog hides forwarding and recommends Email password (IMAP) instead.
• Billing and the mobile push relay are off. 1 GiB memory default.
• The image is built from a pinned upstream commit with four small patches (SSO sign-up, Cloudron Mail detection and routing, hiding forwarding). They're in the repo and I'd like to upstream what makes sense.
• Images and the catalog carry GitHub build provenance.

Links

• Package, setup guide and issues: https://github.com/marcusquinn/cloudron-opendesk-app
• opendesk: https://github.com/useopendesk/opendesk, docs: https://docs.opendesk.sh

This is a first release, so feedback is welcome, especially from anyone using Cloudron Mail mailboxes with aliases or several domains. I maintain the package independently of the opendesk project; please report packaging problems on the package repo rather than upstream.