Also, even the websocket client in the dashboard app refuses to connect. Am I missing something here? It's frustrating the hell out of me.

Here is a screenshot. It won't connect.

Are there additional setup steps? Please let me know.

Hello,

Looks like you are attempting to connect to the web dashboard instead of the emqx instance.

You can find the correct host and port in the emqx service settings under the networking section.

I tried that and it still doesn't connect.

What host and port have you tried to use?

using the service url

You need to use the public port.

I've tried mqtt://caddy-production-f4c3.up.railway.app:1883 and mqtt://viaduct.proxy.rlwy.net:1883

What is the public port? 1883?

That is the private port, you can find the public port in the emqx service settings under the networking section.

It works. Thank you! Can you make this more obvious in the documentation somewhere?

Railway does not own the template, it is a user provided template.