UI Lovelace Minimalist – override tap action in card_light

Configuration Frontend
1

Hi,
I’m configuring my first UI Lovelace Minimalist dashboard.
Following a tutorial, I’ve wrote this for an area:

# esterno.yaml

title: Esterno
path: "esterno"
cards:

  - type: "custom:button-card"
    template: card_light
    entity: light.luce_scala_2
    variables:
      timer: timer.timer_luce_scala
      script_on_tap: script.avvia_timer_scala

then, in card_light yaml I would like to call a script if variables.script_on_tap is passed, instead of toggling the light entity.
The card_light is the default one (Light Card - UI Lovelace Minimalist).

I took a look at the original YAML of the card, but I don’t understand how to insert my code.

Can someone help me? Thanks!