Sure.
Code:
[Unit]
Description=Calibre Service
After=network.target
[Service]
Type=simple
User=xxxxxx
Group=xxxxxx
ExecStart=/usr/bin/calibre-server\
--max-opds-items=30\
--max-opds-ungrouped-items=100\
--port 8282 \
--log=/home/xxxxxx/calibre.log \
--enable-auth \
"/home/xxxxxx/xxxxxx"
--ssl-certfile /etc/apache2/ssl/apache_test.crt \
--ssl-keyfile /etc/apache2/ssl/apache_test.key \
[Install]
WantedBy=multi-user.target