"Build your own Voice Assistant"

This blog entry (Build You Own Voice Assistant – A balenaLabs Residency project) had a link to this:
“Please use the thread below to discuss the related blog post:
[https://www.balena.io/blog/build-your-own-voice-asistant ]”
…but that returns a 404 Not Found, so hopefully I can get a response here.

I would like to implement this voice assistant, but I already have Home Assistant on an Intel NUC, and I’d like to install, the mike & speaker on a RPi and have it talk to HA/Rhasspy on the NUC, via MQTT for processing the voice requests. Any thoughts or suggestions on how this would be done?