There's the demo server which has a simple web UI where you can input text to be spoken, but in regards to setting it up locally it's not that suited for a non developer

https://github.com/mozilla/TTS/tree/master/TTS/server

https://github.com/mozilla/TTS/wiki/Build-instructions-for-s...

There's also a version in docker: https://github.com/synesthesiam/docker-mozillatts

And various Colabs too, which are fairly easy to get going with: https://github.com/mozilla/TTS/wiki/TTS-Notebooks-and-Tutori...