Install libudev-dev:
sudo apt get libudev-dev
sudo vim /etc/systemd/system/evohome.service
[Unit]
Description=Evohome HGI80 temperature logger
After=network.target
[Service]
User=sytse
ExecStart=hgi80-decoder --usb /dev/ttyUSB0 --endpoint http://sdfsdfsdf
[Install]
WantedBy=multi-user.target
sudo systemctl enable evohome
sudo systemctl start evohome