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Nextcloud is a comprehensive file hosting and collaboration platform that allows you to access and share your files, calendars, contacts, mail and more from any device, on your terms. It provides a secure, private cloud solution with extensive app ecosystem.

ownCloud is an all-in-one solution for saving, synchronizing, viewing, editing and sharing files, calendars, address books and more. It provides a secure, private cloud platform with enterprise features and extensive customization options.

Vikunja is the to-do app to organize your life. It provides a comprehensive task management solution with features like lists, kanban boards, calendars, and team collaboration. Built with modern technologies, it offers a powerful alternative to proprietary task management tools.