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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
Parse Server is a backend-as-a-service solution and Node.js framework that provides a ready-to-use REST and GraphQL API for mobile and web applications. It functions as a core backend infrastructure for managing database schemas, user authentication, and API routing. The system distinguishes itself with a real-time data engine that pushes database updates to clients via WebSockets and a GraphQL server that automatically generates schemas based on application data models. It also features an adapter-based storage layer that abstracts interactions with various cloud and local backends. The pla
Electric is a Postgres data synchronization engine and replication proxy designed to enable local-first software. It replicates data from Postgres databases to client-side stores in real time using logical replication, allowing applications to maintain a local embedded database for offline access and low-latency updates. The system distinguishes itself by using shapes to filter and authorize specific subsets of database rows and columns before streaming them to clients or edge workers. It further supports multi-user collaboration by integrating a conflict-free replicated data type framework t
This project is an open-source software development kit and framework for implementing the Matter smart home standard. It provides a universal IPv6-based application layer and a cluster-based data model to ensure interoperability between diverse smart home devices and controllers. The system is distinguished by its multi-transport network abstraction, which maps Bluetooth LE, Thread, and Wi-Fi implementations to a common layer. It includes specialized tooling for secure device commissioning via QR codes and NFC, as well as a comprehensive over-the-air firmware update system for distributing s
vCards is a contact avatar library and directory designed to enhance mobile caller identification. It provides a collection of profile pictures for Chinese public figures and organizations, delivering this data through CardDAV directories and vCard files.
The main features of metowolf/vcards are: Avatar Synchronizations, Contact Data Formats, vCard Directories, Profile Image Libraries, CardDAV Contact Servers, Contact Synchronizations, Mobile OS Integrations, Live Update Subscriptions.
Projects with overlapping indexed features include: kozea/radicale — Radicale is a self-hosted CalDAV and CardDAV server implemented in Python that enables calendar and contact… realm/realm-js — Realm is a mobile database: an alternative to SQLite & key-value stores. electric-sql/electric — Electric is a Postgres data synchronization engine and replication proxy designed to enable local-first software. It… parse-community/parse-server — Parse Server is a backend-as-a-service solution and Node.js framework that provides a ready-to-use REST and GraphQL… project-chip/connectedhomeip — This project is an open-source software development kit and framework for implementing the Matter smart home standard.… tgalal/yowsup — Yowsup is a protocol library and client framework for implementing WhatsApp clients. It provides an interface for…