1. Open new service file:
```
sudo nano /etc/systemd/system/<name>.service
```

2. Content 
```
[Unit]
Description=Page Host Service
After=network.target

[Service]
User=your_username
WorkingDirectory=/home/your_username/repo/asobi
Environment=PYENV_ROOT=/home/your_username/.pyenv
ExecStart=/bin/bash -c "source $PYENV_ROOT/bin/pyenv && pyenv activate pyenv && python page_host.py"
Restart=always
RestartSec=5

[Install]
WantedBy=multi-user.target
```

3. Reload systemd, enable service:
```
sudo systemctl daemon-reload
sudo systemctl enable <name>.service
sudo systemctl start <name>.service
```

4. Check status: 
```
sudo systemctl status <name>.service
journalctl -u <name>.service
```

5. Test reboot: 
```
sudo reboot
```

Check status
```
sudo systemctl status page_host.service
```