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Keeper

Keeper is an open-source calendar syncing tool. It pulls events from iCal/ICS links, CalDAV, iCloud, Fastmail, Google Calendar and Outlook, and pushes them to one or many destination calendars, removing copies again when the source event is deleted. Self-hosted instances get every Pro feature.

Keeper
In Development
This script is currently in active development and may be unstable or incomplete. Use in production environments is not recommended.

Installation

Default install:

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bash -c "$(curl -fsSL https://raw.githubusercontent.com/community-scripts/ProxmoxVED/main/ct/keeper.sh)"
CPU: 2 cores RAM: 2048 MB Disk: 8 GB OS: Debian 13

Notes

There is no default account: open the web UI and register one with a username and password. Registration stays open to anyone who can reach port 3000, so keep the container off the public internet or behind an authenticating proxy.
BETTER_AUTH_URL and TRUSTED_ORIGINS in /opt/keeper_data/.env are set to http://:3000 at install; auth requests from any other origin fail with "Invalid origin". When the IP changes or you add a domain, update them (TRUSTED_ORIGINS takes a comma-separated list) and run systemctl restart keeper-api.</div> </div>
iCal/ICS links and CalDAV accounts (iCloud, Fastmail, Nextcloud, ...) work out of the box. Google Calendar and Outlook need your own OAuth app: put the credentials into GOOGLE_CLIENT_ID/GOOGLE_CLIENT_SECRET and MICROSOFT_CLIENT_ID/MICROSOFT_CLIENT_SECRET in /opt/keeper_data/.env, then run systemctl restart keeper-api keeper-cron keeper-worker.
Google and Microsoft only accept HTTPS redirect URIs on a real domain, so OAuth needs a reverse proxy in front of port 3000. Set BETTER_AUTH_URL and TRUSTED_ORIGINS in /opt/keeper_data/.env to that URL and register [BETTER_AUTH_URL]/api/auth/callback/google, /api/sources/callback/google, /api/auth/callback/microsoft and /api/sources/callback/outlook as redirect URIs.
Web UI (port 3000), API (3001), cron and worker run as keeper-web, keeper-api, keeper-cron and keeper-worker. Database, Redis, secrets and OAuth settings live outside /opt/keeper, which is rebuilt on every update.
## Web Interface
Port: 3000
## Links - [Official Website](https://www.keeper.sh/) - [Documentation](https://github.com/ridafkih/keeper.sh#self-hosted) ---
Source code
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