I haven't used it myself, but Home Assistant can cast to a Google Home Hub, so afaiu, you can set up a whole dashboard of widgets and controls and use it from a stock Home Hub.

I'm going to have to try that out, my whole apartment is mostly Google Home-based.

That said, we are building a Home Assistant integration at Tidbyt as well.

Nice! What I really want, though, is a local API! I can use a starlark script to grab entity states from my local Home Assistant super easy... but then I have to cUrl them up to a Tidbyt server somewhere, only to have it sent right back into my house. Seems kinda silly, and will break anytime my internet goes out.

And touch interface works on the casted lovelace dashboards too!

Completely opens up these displays to be a virtually unrestricted canvas for doing or displaying anything you want.

Are you referring to casting a URL to open a browser on the home hub? I tried that in the past but it was kinda janky. It's definitely possible with something like https://demille.github.io/url-cast-receiver/ though

Just setup a monitor with some browser windows on it? Or one browser window with a local page that embeds the info?

Eh, Tidbyt is cheaper, easier to set up, and looks nicer:

https://github.com/pkulak/tidbyt

It ended up working great!