Nextcloud Deck is an open-source kanban-style project management app bundled with Nextcloud, designed for teams to manage tasks on boards and timelines. Users create boards and cards for tasks, moving them through columns (e.g. To Do, In Progress, Done) and can also switch to a Gantt chart view by assigning start/end dates and dependencies to cards. As a self-hosted solution, Deck stores all project data on the organization’s Nextcloud server, giving full control over data privacy and security. The feature set includes task assignment, tagging, due dates, file attachments from Nextcloud storage, Markdown support for descriptions, checklists, and team discussions on cards.