Hello everyone,
I created a little script, which can be used to trigger every automation you want.
I use it to turn on my lights via NFC without the use of an app, which allows every guest to use it as well.
It simply translates the GET request made by the phone, to a POST request, send to the Home Assistant webhook API.
You can find it here, with a full tutorial on how to set it up: Github Repository.
If you have any kinds of improvements or ideas, let me know.