Terraform - Tool for building, changing, and versioning infrastructure safely and efficiently.
Kontact - Kontact is the integrated Personal Information Manager of KDE.
Ansible - Radically simple configuration-management, application deployment, task-execution, and multi-node orchestration engine
Nextcloud Contacts - The Nextcloud contacts app is a user interface for Nextcloud's CardDAV server.
RunDeck - RunDeck is an open source automation service with a web console, command line tools and a WebAPI.
Kontact - KAddressBook - KAddressBook stores all the personal details of your family, friends and other contacts.