[Unit]
Description=AITBC Blockchain Node Service (Python 3.13.5+)
After=network.target
Wants=network.target

[Service]
Type=simple
User=root
Group=root
WorkingDirectory=/opt/blockchain-node
Environment=PATH=/opt/blockchain-node/.venv/bin
Environment=PYTHONPATH=/opt/blockchain-node
Environment=RUST_LOG=info
# Python version validation
ExecStartPre=/bin/bash -c "python3 --version || (echo 'Python 3.13.5+ required' && exit 1)"
ExecStart=/opt/blockchain-node/.venv/bin/python -m node.main --datadir /opt/blockchain-node/data --rpc-bind 0.0.0.0:8545
ExecReload=/bin/kill -HUP $MAINPID
Restart=always
RestartSec=5
StandardOutput=journal
StandardError=journal
SyslogIdentifier=aitbc-node

[Install]
WantedBy=multi-user.target