...Teletype introduces the concept of real-time "portals" for sharing workspaces. When a host opens a portal, their active tab becomes a shared workspace. There, invited collaborators can join in and make edits in real time. As the host moves between files, collaborators follow along with the active tab automatically. There's no centralized server to spy on your keystrokes, and Teletype uses WebRTC to encrypt all communication between collaborators. What happens in the portal stays in the portal.