Calendars (CalDAV)

Kurrier supports full CalDAV calendar syncing, giving you a powerful, private, self-hosted scheduling system that works seamlessly across all your devices — phones, tablets, desktops, and native calendar apps.

Whether you're using Apple Calendar, Thunderbird, DAVx⁵ on Android, or Outlook via CalDAV plugins, Kurrier keeps everything in perfect sync.

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What makes Kurrier Calendars special?

Kurrier isn’t just a standalone calendar server. It’s part of a deeply integrated personal information suite, alongside:

✉️ Mail

Invite guests and receive event invitations directly inside your Kurrier inbox. Kurrier automatically processes .ics attachments, updates your calendar, and tracks attendee responses.

👥 Contacts (CardDAV)

Your event attendees automatically link with your Kurrier contacts. Names, avatars, and emails are unified across:

• Mail
• Contacts
• Calendar
• Autocomplete fields in the UI

No duplication. No inconsistencies. One shared identity graph.

📅 Calendar

Kurrier merges mail + contacts + events into a single cohesive, self-hosted platform.

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What works today

Kurrier’s CalDAV backend is already fully capable of:

✅ Creating and storing calendars

Create personal calendars, work calendars, or shared calendar collections from any CalDAV app.

✅ Two-way syncing of events

Create, update, or delete events on any device — the changes sync instantly.

✅ Accurate timezone handling

Kurrier stores all events in UTC and converts them to the correct timezone in both your UI and .ics files.

✅ Event invitations & iTIP support

Kurrier correctly handles:

• Sending .ics invitations
• Receiving replies (ACCEPTED / DECLINED / TENTATIVE)
• Updating attendee partstats
• Cancelation flows

All directly through Kurrier Mail.

✅ Multi-device support

Works flawlessly on:

• iOS & macOS Calendar
• Android (DAVx⁵)
• Thunderbird / Lightning
• Outlook (CalDAV plugin)
• Any CalDAV-compatible client

✅ Integrated attendee management

Kurrier tracks:

• Organizer identity
• Guest list
• RSVP status
• Roles (chair, required attendee, optional attendee)

All visible inside the Kurrier Calendar UI.

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Kurrier Calendar Web UI

The Calendar Web UI is now functional and includes:

• Popover editing
• Time zone aware event creation
• Guest management
• Email notifications for attendees
• Deep linking from inbox to event

The goal is a clean, modern, Google Calendar–style interface that fits naturally inside the Kurrier dashboard.

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Why CalDAV?

CalDAV is an open standard, which means:

• No vendor lock-in
• Works across all platforms
• Portable, exportable, future-proof
• Fully under your control when self-hosted

Kurrier simply acts as your private calendar engine, synced across your personal ecosystem.

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Coming soon

Kurrier’s calendar system is rapidly evolving. Next on the roadmap:

🔁 Recurring events

Support for RRULEs (daily/weekly/monthly/custom repeats).

🌕 All-day events

Native all-day event rendering and syncing.

👥 Shared calendars

Multiple users sharing the same calendar with view/edit permissions.

📎 Attachments & event metadata

Adding notes, files, and extended properties to events.

🔔 In-browser reminders

Desktop notifications, snooze support, and reminder settings.

🗂 Multiple calendars per identity

Color-coded views & per-calendar visibility toggles.

📅 Availability and free/busy

Auto-computed availability windows for scheduling.

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Summary

• ✔ A complete, standards-compliant CalDAV backend
• ✔ Two-way syncing with all major calendar apps
• ✔ Event invitations and RSVP processing through Kurrier Mail
• ✔ Contact-aware attendee management
• ✔ Modern web UI for creating and editing events

And coming soon:

• 🔁 Recurring events
• 🌕 All-day events
• 👥 Shared calendars
• 🔔 Web reminders
• 🗂 Multi-calendar management