[Unit]
Description=Superball Thrower Daemon (C Implementation)
Documentation=https://git.laantungir.net/laantungir/super_ball_thrower
After=network-online.target
Wants=network-online.target

[Service]
Type=simple
User=superball-thrower
Group=superball-thrower
WorkingDirectory=/usr/local/bin/super_ball_thrower
ExecStart=/usr/local/bin/super_ball_thrower/superball_thrower /usr/local/bin/super_ball_thrower/config.json
Restart=always
RestartSec=10
StandardOutput=journal
StandardError=journal
SyslogIdentifier=superball-thrower
Environment="LD_LIBRARY_PATH=/usr/local/lib:/usr/lib/x86_64-linux-gnu"

# Security settings
NoNewPrivileges=true
PrivateTmp=true
ProtectSystem=strict
ProtectHome=true
ReadWritePaths=/var/log/superball-thrower /usr/local/bin/super_ball_thrower
ProtectKernelTunables=true
ProtectKernelModules=true
ProtectControlGroups=true
RestrictRealtime=true
RestrictSUIDSGID=true
LockPersonality=true
RestrictNamespaces=true
SystemCallFilter=@system-service
SystemCallErrorNumber=EPERM

# Resource limits
LimitNOFILE=65536
LimitNPROC=4096

[Install]
WantedBy=multi-user.target