DEJA.JSServerOne install command. Runs anywhere.
The quiet bridge between your browser and your DCC-EX CommandStation. Runs on Mac, Linux, and Raspberry Pi.
Small footprint. Big responsibilities.
Single-command install
Paste one curl command and DEJA.js Server is running. No Docker, no Python virtualenv, no yak to shave.
Mac, Linux, and Raspberry Pi
Runs natively on macOS, Linux, and a Raspberry Pi. Plug in USB, start the server, start driving.
Bridges every protocol
Connects your browser, your layout devices, and your DEJA Cloud roster over the right channel for each job.
Managed with the deja CLI
Start, stop, update, and inspect your server with a single `deja` command. PID files and graceful shutdown built in.
One command. Running in seconds.
DEJA.js Server installs into ~/.deja/ as a self-contained Node.js process. No Docker, no system-level packages, and nothing you need sudo to remove.
- Installs under ~/.deja/ — no root required
- Connects to your DCC-EX serial port
- Managed with the `deja` CLI: start, stop, status, update
The thinnest bridge we could build.
Your browser talks WebSockets to the server. The server talks serial to DCC-EX, MQTT to your IO devices, and syncs everything to DEJA Cloud. That's it. No proprietary protocols. No lock-in.
browser ──WebSocket──▶ server
│
├─Serial──▶ DCC-EX
├─MQTT────▶ IO devices
└──Sync───▶ DEJA CloudOne account. Every app.
DEJA.js isn't a single tool — it's an open platform for driving, managing, and expanding your layout.
Free to try. No trial timer.
Spin up DEJA.js on your layout today — no credit card, no download for the web apps.
Bridge your layout to the browser in under a minute.
Paste the install command. Plug in USB. You're live.