Invito

A lightweight, self-hosted scheduling tool. Give guests a link — they pick a time that works for both of you.

Invito connects to your existing CalDAV calendars to find open slots and blocks time when a booking is confirmed. No cloud lock-in, no monthly fee.

Features

• CalDAV integration — connects to any CalDAV server (Nextcloud, iCloud, Google Calendar via DAV, etc.)
• Multiple event types — define different meeting kinds with fixed durations (e.g. "30-min intro call", "1-hour consultation")
• Public booking pages — share a link; guests book without needing an account
• Embeddable widget — embed the booking picker as an iframe on any website
• Pending approval — every booking request waits for your confirmation before being added to your calendar
• Email notifications — accept or reject bookings directly from your inbox
• OIDC login — no separate user database; plug in your existing identity provider
• Single binary — deploy with one file and an SQLite database

Quick Start

docker run -d \
  -e INVITO_BASE_URL=https://invito.example.com \
  -e INVITO_OIDC_ISSUER=https://auth.example.com/realms/main \
  -e INVITO_OIDC_CLIENT_ID=invito \
  -e INVITO_OIDC_CLIENT_SECRET=secret \
  -e INVITO_SMTP_HOST=smtp.example.com \
  -e INVITO_SMTP_FROM=invito@example.com \
  -e INVITO_SESSION_SECRET=replace-with-32-byte-hex \
  -v invito-data:/data \
  ghcr.io/jeboehm/invito:latest

See the Getting Started tutorial for a full walkthrough.

Documentation

This documentation follows the Diátaxis framework:

Type	Content
Tutorial	Getting Started — from install to first confirmed booking
How-to	Connect a CalDAV calendar
How-to	Create an event type
How-to	Set your availability
How-to	Share a booking link
How-to	Manage bookings
How-to	Set up your profile
How-to	Embed a booking widget
Reference	Configuration — all environment variables
Explanation	Architecture — design decisions
Explanation	Booking flow — request to confirmation
Explanation	Data model — entities and relationships