No monitor necessary! You access the UI from any other device on the ip address of the node.
Discussion
For Umbrel, you just type in Umbrel.local in any browser to get to the GUI. Think: mini personal server - and your node is the cloud.
interesting. I have so much more to learn. Thanks for getting me started on a new project. Will definitely be digging into this and researching and playing around with it as this will be a fun side hobby and learning experience for me with this type of tech.