Ads.txt and HTML code

Is there a way I can add Ads.txt to my site? Also, I need to add some HTML code to pages. How can I do this?

Rich text component can render some html.
And you can shown any external web site by Web view component.

Thank you! Also, how specifically would I add ads.txt?

It is a text file from adsense.

I think you can add by Glide API ads text not file.

Any way i think Glide is not right choice for ads in app.
Maybe I’m wrong.