# Example unit — legacy OP Stack op-geth execution client.
# Prefer op-reth for new deployments; op-geth is approaching end-of-support.
# Install: copy to /etc/systemd/system/, edit paths, `systemctl daemon-reload && systemctl enable --now ...`
#
# Replace:
#   /opt/op-stack — install root
#   opuser — unprivileged user
#   /etc/op-stack/sequencer.env — EnvironmentFile (RPC URLs, JWT, flags; no keys in world-readable files)

[Unit]
Description=OP Stack op-geth (legacy) — example
After=network-online.target
Wants=network-online.target

[Service]
Type=simple
User=opstack
Group=opstack
WorkingDirectory=/opt/op-stack
EnvironmentFile=-/etc/op-stack/sequencer.env
# ExecStart=/opt/op-stack/bin/geth ... (legacy fallback only; prefer op-reth)
ExecStart=/bin/false
Restart=on-failure
RestartSec=10

[Install]
WantedBy=multi-user.target