[Unit]
Description=BigCoin Core daemon (seed node)
Documentation=https://github.com/bigcoin-project/bigcoin
After=network-online.target
Wants=network-online.target

[Service]
Type=forking
User=bigcoin
Group=bigcoin

# Adjust paths if you install elsewhere.
ExecStart=/usr/local/bin/bigcoind -daemon -pid=/run/bigcoind/bigcoind.pid \
          -conf=/etc/bigcoin/bigcoin.conf -datadir=/var/lib/bigcoin
ExecStop=/usr/local/bin/bigcoin-cli -conf=/etc/bigcoin/bigcoin.conf stop

PIDFile=/run/bigcoind/bigcoind.pid
RuntimeDirectory=bigcoind
Restart=on-failure
RestartSec=10
TimeoutStopSec=120
TimeoutStartSec=60

# --- Hardening ---
NoNewPrivileges=true
PrivateTmp=true
ProtectSystem=full
ProtectHome=true
ReadWritePaths=/var/lib/bigcoin
MemoryDenyWriteExecute=false

[Install]
WantedBy=multi-user.target