Angular 7 SEO / Angular Universal in Firebase

[Athom Sfere]

Has anyone managed to actually deploy a SSR / or SEO accessible Angular 7 site?

Google Search Console sees nothing from the site, so I've been attempting to figure out how to deploy an Angular 7 app to Firebase.

I have an open question with no new information on SO: https://stackoverflow.com/questions/54139525/angular-7-ssr-and-firebase-deployment

Locally, I can get the SSR html, but I haven't been able to run it with firebase serve (npm serve works with Node Express)

It doesn't seem like this should be so hard. But no one seems to have an answer either.