Alexa Show, Lenovo Smart Clock Smart Display alternative.

Im interested if people are finding anything witha similar form factor to Alexa Shows or Lenovo smart clocks that can run Linux ?

Im particularly interested in something with a decent speaker, integrated camera and display. Ideally 12v DC or POE powered.

I'm also looking for self hosted apps with pushtotalk or Dropin features.

I know I could probably cobble something together but ideally something well formed but would be cool.

What are people's thoughts / suggestions?