ops: persist livekit-server and camera fleet as systemd 24/7 units

README.md

@@ -82,18 +82,19 @@ lightweight high-pass + soft-clip DSP path so streams still work.
 Until the 1 s window is full, hops use the DSP fallback so LiveKit is
 not silent on startup.
 
-## systemd (optional, not enabled)
+## systemd (enabled, 24/7)
+
+Two units, enabled for multi-user.target:
+
+- `livekit-server.service` — `/usr/local/bin/livekit-server` + `deploy/livekit-server.yaml` (:7880)
+- `livekit-cameras.service` — `run.py` (Requires livekit-server)
 
 ```bash
-sudo cp deploy/livekit-cameras.service /etc/systemd/system/
+systemctl status livekit-cameras livekit-server
-sudo systemctl daemon-reload
+journalctl -u livekit-cameras -f
-# only if you want 24/7:
+systemctl restart livekit-cameras   # pick up newly plugged cameras
-sudo systemctl enable --now livekit-cameras
 ```
 
-Requires a LiveKit server already listening (this host uses
-`/tmp/livekit-server --config /tmp/livekit-test.yaml` on :7880).
-
 ## Notes
 
 - Video uses MJPG directly from the UVC interface (`ffmpeg -f v4l2

deploy/livekit-cameras.service

@@ -1,16 +1,20 @@
 [Unit]
 Description=Publish C920 cameras (speechbrain audio) to LiveKit
-After=network-online.target sound.target
+After=network-online.target sound.target livekit-server.service
 Wants=network-online.target
+Requires=livekit-server.service
 
 [Service]
 Type=simple
 WorkingDirectory=/home/fdenkena/livekit-cameras
 ExecStart=/home/fdenkena/livekit-cameras/.venv/bin/python /home/fdenkena/livekit-cameras/run.py
-Restart=on-failure
+Restart=always
 RestartSec=5
+TimeoutStopSec=30
+KillMode=control-group
 Environment=PYTHONUNBUFFERED=1
 Environment=LIVEKIT_URL=ws://127.0.0.1:7880
+Environment=ENHANCE_MODE=force
 
 [Install]
 WantedBy=multi-user.target

deploy/livekit-server.service

@@ -0,0 +1,14 @@
+[Unit]
+Description=LiveKit server for the C920 camera fleet
+After=network-online.target
+Wants=network-online.target
+
+[Service]
+Type=simple
+ExecStart=/usr/local/bin/livekit-server --config /home/fdenkena/livekit-cameras/deploy/livekit-server.yaml
+Restart=always
+RestartSec=2
+LimitNOFILE=65536
+
+[Install]
+WantedBy=multi-user.target

deploy/livekit-server.yaml

@@ -0,0 +1,13 @@
+port: 7880
+bind_addresses:
+  - 127.0.0.1
+  - 10.200.0.20
+keys:
+  devkey: devsecret
+rtc:
+  tcp_port: 7881
+  udp_port: 7882
+  use_external_ip: false
+  node_ip: 10.200.0.20
+logging:
+  level: info