User:Simon/Trim4/prototypes/calibre service file

You can easily create a service to run calibre at boot on a modern (systemd) based Linux system. Just create the file /etc/systemd/system/calibre.service with the contents shown below:

[Unit]
    Description=Calibre.
    After=syslog.target network.target
    
    [Service]
    Type=simple
    User=pi
    Group=pi
    WorkingDirectory=/home/pi/calibre-web
    ExecStart=python cps.py
    Restart=always
    
    [Install]
    WantedBy=multi-user.target

The User and group should be the same ones that own the files in the calibre library directory. Note that it is generally not a good idea to run the server as root. Also change the path to the calibre library directory to suit your system.

Now run:

sudo systemctl start calibre

to start the server. Check its status with:

sudo systemctl status calibre

To make it start at boot, run:

sudo systemctl enable calibre

Note

The calibre server does not need a running X server, but it does need the X libraries installed as some components it uses link against them.

The calibre server also supports systemd socket activation, so you can use that, if needed, as well.