Huly

Huly positions itself as an "everything app" for teams, explicitly replacing Linear, Jira, Slack, and Notion in a single platform. Beyond documents, it bundles project management, CRM, HRM, applicant tracking, chat, and even a virtual office with audio/video rooms. The codebase is a mix of TypeScript, Svelte, Go, and Rust, and the framework is used by other products (e.g. TraceX) on top of the same platform repo.

Yes — the source is released under the Eclipse Public License 2.0, and the team provides a dedicated huly-selfhost repository with a Docker-based quickstart. Note that the README calls out that the hosted Huly service is being shut down (no longer funded), so self-hosting is effectively the supported path going forward; a backup & restore guide is provided for migrations.

Documents in Huly support live multi-user editing with version history, @mentions, code blocks, attachments, and rich-text formatting. Collaboration extends beyond docs into built-in chat, channels, and a virtual office for synchronous work. The platform also supports assigning action items directly from meeting notes inside the same editor.

Yes — Huly ships a bidirectional GitHub sync for both Issues and Projects. You can link multiple repositories, mirror milestones, track contributions, and keep private tasks that only live in Huly. Effectively, Huly can act as a richer front-end on top of an existing GitHub workflow without forcing a migration off GitHub Issues.