Local by default · optional multi-device sync

Control your coding agents from any device.

Si runs Claude Code, Codex, Cursor, Grok, Hermes and Pi on your machines. Steer them from one fast native window, on any device you own, live.

Download for macOS Apple silicon · latest release
Works with the agents you already use
Claude Code Codex Cursor Grok Hermes Pi
The Si app driving a coding agent session across sessions, transcript and a live diff

One window. Every machine. Every agent.

Sessions live on your machines. Every device you own can pilot them.

01 · native

Native and fast

Built in Rust on GPUI, the GPU-accelerated framework behind Zed. No Electron, no lag.

02 · agents

Every agent, normalized

Claude Code, Codex, Cursor, Grok, Hermes and Pi speak stream-json and JSON-RPC into one model.

03 · anywhere

Drive from anywhere

Start a run on your desktop and follow or steer it from your laptop, iPhone or iPad, live.

04 · local

Local by default

A small engine on each device stores sessions on disk. No account or network needed to start.

05 · sync

Optional sync

Sign in only for a synced workspace. An always-on VPS keeps agents working after you close the lid.

06 · keys

Keyboard-first

Every action is a keystroke away. Jump between sessions, diffs and history without the mouse.

Install in seconds

Grab the macOS app above, or run the one-line installer on Linux.

$ curl -fsSL https://si-edge.wecodeph.dev/install.sh | sh

The engine starts immediately and keeps running across reboots. Run si status to check it.

Ready when you are

Download the macOS app and open your first session in under a minute.