A flutter project with Implementation of a Contacts app in 4 ways (API, Custom, Preferences and Sqflite).

Tuta is an email service with a strong focus on security and privacy that lets you encrypt emails, contacts and calendar entries on all your devices.

Dolibarr ERP CRM is a modern software package to manage your company or foundation's activity (contacts, suppliers, invoices, orders, stocks, agenda, accounting, ...). it's an open source Web application (written in PHP) designed for businesses of any sizes, foundations and freelancers.

🔥 PlainApp is an open-source app that lets you securely manage your phone from a web browser. Access files, media, contacts, SMS, calls, and more through a simple, easy-to-use interface on your desktop.

☁️ Ultra-fast, secure & lightweight self-hosted cloud storage — your files, photos, calendars & contacts, all in one place. Built in Rust.

📇 Synchronize calendars and contacts.

Kurrier is a modern, self-hosted workspace for email, calendar, contacts and storage.

JMAP Webmail built for the 21st Century. A modern, self-hosted email client for Stalwart Mail Server powered by the JMAP protocol. Email, calendar, contacts and files. Fast, private, and open source.

Universal personal search engine, powered by a full text search algorithm written in pure Ink, indexing Linus's blogs and private note archives, contacts, tweets, and over a decade of journals.

Condo is an Open Source property management SaaS that allows users to manage tickets, resident contacts, properties, payment tracking, create invoices, and oversee a service marketplace, all while offering an extension system for mini-apps, making it an ideal platform for property management companies and those servicing shared properties.

Headless GTM: the full outbound chain as Claude Code and Codex skills on raw vendor APIs.

OpenGhost is an installable AI agent skill that provides a Docker-based, scoped web application penetration testing workflow for authorized engagements.