Umbrel-dev.local not accessible

Support and Troubleshooting
1

I wanted to develop an app for Umbrel, so I followed this guide

”https://github.com/getumbrel/umbrel-apps/blob/master/README.md”

I followed all the steps up to the point where I am trying to install “umbrel-dev.local” on Docker Desktop. It appears to install successfully, using the command - npm run dev. However, when I try to access “umbrel-dev.local” in my web browser, it is not found. I can see the app is running in Docker Desktop, and I can inspect the running app. However, I do not see any IP address for the app to which I can telnet and further investigate. Below is the result of my inspection of the “Networks” section on the app in Docker Desktop.

	"Networks": {
		"host": {
			"IPAMConfig": null,
			"Links": null,
			"Aliases": null,
			"MacAddress": "",
			"DriverOpts": null,
			"GwPriority": 0,
			"NetworkID": "c7b8cd09137e055acb0e24edb1704c6b9a3c62b1874e5e3af76ad20ea7518c15",
			"EndpointID": "d9884deb96398967687d1ba3ba62c1f82911185a56d9c2529ab2c45c3d5b4f77",
			"Gateway": "",
			"IPAddress": "",
			"IPPrefixLen": 0,
			"IPv6Gateway": "",
			"GlobalIPv6Address": "",
			"GlobalIPv6PrefixLen": 0,
			"DNSNames": null
		}
	}

Any assistance on how to get the “umbre-dev.local” working on Docker Desktop would be appreciated.