[Unit]
Description=BubbleCam e-Paper status display
After=bubblecam-rtc-sync.service local-fs.target
Wants=bubblecam-rtc-sync.service

[Service]
Type=simple
ExecStart=/opt/bubblecam/bin/epaper_display.py
Restart=on-failure
RestartSec=10
User=root
# Hard backstop against the failure that took this Pi off the network: the
# display spawns ffmpeg to grab preview frames, and an over-large capture
# once exhausted all 512MB (swap is disabled), letting the kernel OOM
# killer pick off NetworkManager. Cap the whole cgroup -- ffmpeg children
# included -- so a runaway preview kills only itself, and make this
# non-mission-critical service the preferred OOM victim if memory ever
# does get tight elsewhere.
MemoryMax=150M
OOMScoreAdjust=500

[Install]
WantedBy=multi-user.target