Nathan Sobo recently open-sourced Zed, a code editor that focuses on performance, integrates AI capabilities, and supports software teams’ collaboration out of the box. For performance, Zed leverages a Rust code base, multicore- and GPU-optimized code, with a custom Rust GUI framework. For collaboration, Zed relies on CRDTs and team channels. Zed is currently Mac only.
On the plus side, the fact they stopped Atom development has allowed our community fork of Pulsar to flourish and it has seen loads of active development over the last year. I do find it hard to blame the original team, it was clearly a Microsoft thing to make sure they put all focus on VSCode.