Zed

Zed is a code editor written in Rust and rendered on the GPU. The performance goal is the product's identity: startup, scrolling, and search are fast enough that the editor stays out of the way on very large files. The second distinguishing feature is collaboration. A shared project gives other people the same buffer, cursor, and terminal, so pairing is a mode of the editor rather than a separate screen-share. Channels let a team keep a persistent room for a project. Zed is open source. The editor itself is published in a public repository, and the collaboration service is the commercial layer. That split - an open editor with a hosted service on top - is the same pattern several developer tools use, and it means the editing experience can be inspected and self-built while the multiplayer backend remains a paid product.