Add external html page inside a Grav page without using iframe?

Hi,

I have a question if someone can help me.

I have a grav site and in my homepage I want to include/embed/inject a personal weather station html page that is outside the grav main directory.

So far I tried an iFrame, but I have issues on auto height function

I tried the inject plugin but did not worked because from my understanding need paths inside the grav directory.

Any other idea to inject the html page inside my front page? Can be done via twig?

Thank you.