No, when I open the app on Umbrel it tries to go to http://umbrel.local:8079 but nothing is running on that port
At the logo dialog? You may need to set the correct frontend url in the docker compose environment.
When you access the app at http://localhost:8000/ then this hostname must also be set in TA_HOST setting.
No, when I open the app on Umbrel it tries to go to http://umbrel.local:8079 but nothing is running on that port