Decentralized Twitter/X rival Bluesky announced the open sourcing of Ozone, a tool for collaborative review and labeling of content. This change aims to give users unprecedented control over their social media experience by enabling them to run their own independent moderation services. This will allow users to install filters from independent moderation services on top of Bluesky's default moderation, creating a customized experience tailored to their preferences. Moderation services will be available on the desktop version of Bluesky and will soon be available on mobile. The open source tool can be found on the GitHub repository here.