OpenSlides
Presentation and assembly system for managing and projecting agenda, motions and elections of an assembly.
Alternatives
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osem
Event management tailored to free Software conferences.
indico
Feature-rich event management system, made @ CERN, the place where the Web was born.
motion.tools (Antragsgrün)
Manage motions and amendments for (political) conventions.
1time
Zero-knowledge one-time secret sharing. End-to-end encrypted, self-hosted, open source.
4ga Boards
Straightforward realtime kanban boards management for intuitive task tracking. Featuring an elegant dark mode, collapsible todo lists, and multitasking tools to supercharge your team's productivity.
AFFiNE Community Edition
There can be more than Notion and Miro. AFFiNE(pronounced [ə‘fain]) is a next-gen knowledge base that brings planning, sorting and creating all together. Privacy first, open-source, customizable and ready to use.