To start with Nhost Run, you will need to create an Nhost project first. Then you can click on Run in the sidebar:

Then on New Service:

Now you can fill your service configuration:

As you configure the Ports section you can take note of the generated URL. You can find more information about this section under Networking.

Once you are done configuring your service you can click on Create:

Now wait for the service to finish updating:

Finally you can visit the URL you copied before:

And profit!