Is there one open-source app that replaces Linear, Notion and Slack?

Yes. Orbit puts tasks like Linear, docs like Notion and chat like Slack in one workspace. It is one binary with SQLite or Postgres, Apache 2.0, free to self-host, or $10 per workspace each month on Orbit Cloud.

See pricing Self-hosting guide MCP setup GitHub integration

Frequently asked questions

Can I bring my existing work?

Orbit imports docs from Notion and tasks from Linear, Asana and Trello.

Can I run it on my own server?

Yes. Orbit is a Rust binary with an embedded web app, using SQLite or Postgres. It is free to self-host under Apache 2.0.