Kanboard supports RSS feeds for projects and users.

• Project feeds contains only the activity the project
• User feeds contains the activity stream of all projects the user is a member

Those subscriptions are only activated when the public access is enabled in the user profile or in the project settings.

Enable/Disable Project RSS Feeds

Go to Project settings > Public access.

Enable/Disable User RSS Feeds

Go to User profile > Public access.

The RSS link is protected by a random token, only people who know the URL can access to the feed.