Powershell command for triggering automation

[YOZZOPANOZZO]

Frist of all, I want to thank you for sharing this, it took literally 2 minutes to set up and it works great! awesome work.
I have a question though.
Is there a way to trigger an automation without having to click on it? for instance, I want my amp to be turnd on as soon as my computer starts. By looking at your code I tried putting together a powershell command that is able to do just that (which I would then run at startup through task scheduler)
this is what I came up with, but unfortunately it does not work:

invoke-RestMethod -Method POST -Body (@{entity_id = "automation.amp2"} | ConvertTo-Json) -Uri "http://homeassistant.local:8123//api/services/automation/trigger" -Headers "Authorization" = "Bearer LONG_LIVED_TOKEN"; "Content-Type = "application/json"

What am I my doing wrong?

Thanks again.