Transform an input device into a shortcut board. for example, a second keyboard with pictures on keys

A main daemon (hotcutdaemon.py) running as root intercepts a keyboard device through its device file, acquiring a lock on it and preventing it from sending inputs to the X server.

The key presses trigger commands as specified in the config.ini file

1. Locate the device file and edit config.ini by setting the device path and your shortcuts.
2. Determine your keyboards serial id (you may use,sudo udevadm info -a -n {DEVICE_FILE}) edit udev/99-keyboard-shortcuts.rules with it, while setting OWNER={Your username} and add said file to /etc/udev/rules.d to tell udev to allow your user to access the device file; restart udev with sudo udevadm trigger
3. chmod +x hotcutdaemon.py with your user
4. add hotcutdaemon.py to a crontab (or to your i3/wm config file) for automatic execution