sudo tee /etc/systemd/system/challenge.service > /dev/null <<'EOF'
[Unit]
Description=Start TryHackMe challenge
After=docker.service network-online.target
Requires=docker.service

[Service]
Type=oneshot
WorkingDirectory=/opt/challenge
ExecStart=/usr/bin/docker compose up -d
ExecStop=/usr/bin/docker compose down
RemainAfterExit=yes

[Install]
WantedBy=multi-user.target
EOF