How do I setup whisper, piper and open wake word on a faster server

my main instance of home assistant is running on an odroid n2+. Open wake word etc running locally are too slow to be usable. The documentation says I can run the necessary software in a docker container on a separate server. I can’t find a guide on how to do that. My experience level with docker is too limited to do it myself. Alas that means until there is a decent guide, all the great stuff announced as part of the “Year of the Voice” is essentially useless to me.