Termux Headless Setup

OmniRoute can run as a headless server on Android through Termux. The Electron desktop app is not supported in Termux, but the web dashboard and OpenAI-compatible API work from the local browser or from other devices on the same network.

Prerequisites

Install Termux from F-Droid or GitHub releases, then update packages and install the build tools required by native dependencies such as better-sqlite3.

bash

pkg update
pkg upgrade
pkg install nodejs python build-essential git

Node.js version: OmniRoute requires Node >=22.22.2 <23 || >=24.0.0 <27 (matches engines in package.json / SUPPORTED_NODE_RANGE). Termux's nodejs-lts typically ships Node 20 LTS, which is no longer supported — install pkg install nodejs (current) instead and verify node --version reports a 22.x/24.x+ line.

If native package compilation fails, rerun the pkg install command above and then retry the OmniRoute install.

Install

Run the latest published package directly:

bash

npx -y omniroute@latest

You can also install it globally:

bash

npm install -g omniroute
omniroute

Run

Start OmniRoute in headless server mode:

bash

omniroute

or:

bash

npx omniroute

The dashboard listens on:

text

http://localhost:20128

Open that URL in the Android browser. If you run clients inside Termux, use the same host and port as the OpenAI-compatible base URL.

Background Execution

For a simple background process:

bash

nohup omniroute > omniroute.log 2>&1 &

To stop it:

bash

pkill -f omniroute

For automatic startup after device boot, install the Termux:Boot add-on and create a boot script:

bash

mkdir -p ~/.termux/boot
cat > ~/.termux/boot/omniroute.sh <<'EOF'
#!/data/data/com.termux/files/usr/bin/sh
cd "$HOME"
nohup omniroute > "$HOME/omniroute.log" 2>&1 &
EOF
chmod +x ~/.termux/boot/omniroute.sh

Android battery optimization can stop long-running background processes. Disable battery optimization for Termux if the server is expected to stay online.

Access From Other Devices

Find the phone IP address on the WiFi network:

bash

ip addr show wlan0

Then open the dashboard from another device:

text

http://PHONE_IP:20128

For example:

text

http://192.168.1.50:20128

Keep the phone and client on the same trusted network. If you expose OmniRoute outside the phone, enable API keys and dashboard authentication.

Data Directory

By default OmniRoute stores data under the Termux home directory, following the same server-side data path behavior used on Linux. To place the database somewhere explicit:

bash

export DATA_DIR="$HOME/.omniroute"
omniroute

Limitations

Electron does not run in Termux.
There is no system tray or desktop integration.
This setup is server-only: use the browser dashboard.
Native dependencies may need local compilation.
Low-memory Android devices may need fewer concurrent requests.
MITM/system certificate features may require Android-level trust-store work outside Termux.

Troubleshooting

Unsupported platform: android (every request returns HTTP 500)

Symptom: omniroute / omniroute serve prints ✔ OmniRoute is running!, but every dashboard or API request returns a bare 500 Internal Server Error. ~/.omniroute/logs/application/app.log stays empty, APP_LOG_LEVEL=debug prints nothing useful, and the response body is plain text (Internal Server Error) with no JSON detail.

Cause: Some Termux/Node builds report process.platform === "android". Next.js getCacheDirectory() does not handle that platform: it requires ~/.cache (or a generic tmp dir) to already exist, otherwise it fails while loading the instrumentation hook with:

text

Error: An error occurred while loading instrumentation hook: Unsupported platform: android

Because the hook never loads, logging never starts — the 500 looks completely undiagnosable. OmniRoute creates ~/.cache (and sets XDG_CACHE_HOME when unset) in the CLI entrypoint before Next.js starts so this probe succeeds on Android/Termux.

Supported resolution (no package patching):

bash

mkdir -p ~/.cache
omniroute serve

On current OmniRoute builds the CLI does this automatically on Android/Termux — a fresh npx -y omniroute@latest / global install should not require the manual step. If you still see the error after upgrading, create ~/.cache once as above and restart.

Do not patch dist/server.js to force process.platform = "linux". That kind of package patch is overwritten on every reinstall/upgrade and is unnecessary once the cache directory exists.

better-sqlite3 Build Errors

Install the Termux build toolchain:

bash

pkg install nodejs python build-essential

Then rerun:

bash

npx -y omniroute@latest

Port Already In Use

Check what is listening on the default port:

bash

ss -ltnp | grep 20128

Stop the old process:

bash

pkill -f omniroute

Dashboard Not Reachable From Another Device

Verify both devices are on the same WiFi network, then test from Termux:

bash

curl http://localhost:20128

If local access works but LAN access does not, check Android hotspot/WiFi isolation and any firewall or VPN profile on the phone.