Open-source alternatives to MIND

Indico - A feature-rich event management system, made @ CERN, the place where the Web was born.

Radicale is a self-hosted CalDAV and CardDAV server implemented in Python that enables calendar and contact synchronization across multiple clients using open standards. It stores all data directly on the filesystem in a simple folder hierarchy, eliminating the need for an external database, and automatically tracks every change by committing modifications to a Git repository for version history and backup. The server distinguishes itself through a modular plugin architecture that allows custom Python modules to extend authentication, storage backends, and web interface functionality at start

Rallly is a group scheduling tool and collaborative event planner designed to coordinate meeting dates and collect participant availability. It functions as a multi-tenant meeting coordinator that allows users to propose date options via polls, visualize overlapping free time in a grid, and finalize meeting arrangements across different time zones. The project is built as a self-hosted scheduling application that can be deployed on private infrastructure using a containerized stack. This deployment model enables full data ownership and includes capabilities for corporate identity branding, al

sabre/dav is a CalDAV, CardDAV and WebDAV framework for PHP

EasyAppointments is a self-hosted appointment scheduling system designed to coordinate booking times between service providers and customers. It manages the end-to-end scheduling process, including the organization of services, provider allocation, and the definition of booking rules and constraints. The platform supports white-label rebranding, allowing the removal of default logos and the customization of interface text to launch the service under a private business identity. It also provides enterprise-grade identity management by integrating staff and administrator authentication with cen

Baïkal is a Calendar+Contacts server

Odysseus is a self-hosted AI workspace and autonomous agent framework designed for deploying and managing large language models. It serves as a centralized platform for orchestrating agentic tasks, utilizing a model context protocol server to connect AI models to external system utilities, browser automation, and local hardware. The system distinguishes itself through a combination of retrieval-augmented generation and a RAG knowledge base, using vector stores and local embeddings to provide persistent semantic memory. It further integrates AI-driven communication management to triage email i