Codex is using its app server protocol to build a nice client/server separation that I enjoy on top of the predictable Rust performance. You can run a codex in

Codex is using its app server protocol to build a nice client/server separation that I enjoy on top of the predictable Rust performance. You can run a codex instance on machine A and connect the TUI to it from machine B. The same open source core and protocol is shared between the Codex app, VS Code and Xcode.