Focalboard is installed with Mattermost v6 and later, where it's called Boards. You can [install Mattermost as a self-hosted server](https://mattermost.com/deploy/?utm_source=focalboard&utm_campaign=focalboard) or [sign up for Mattermost Cloud](https://customers.mattermost.com/cloud/signup?utm_source=focalboard&utm_campaign=focalboard).
Mattermost Boards currently uses channel-based permissions, meaning that only members of the associated channel can access (read/write) the boards for that channel.
Create or join a Private channel, Group Message, or Direct Message. Then, select the Boards icon in the channel header to create a board. Only members of the Private channel, Group Message, or Direct Message can access the board.
You can use the [share board](/guide/user/#sharing-boards) feature to share a read-only board with anyone (incuding unauthenticated users) who has the generated link.
For more information about using Mattermost Boards, refer to the main [product documentation here](https://docs.mattermost.com/guides/boards.html?utm_source=focalboard&utm_campaign=focalboard).