

You can absolutely use it without a reverse proxy. A proxy is just another fancy HTTP client that contacts the server on the original client’s behalf and forwards the response back to it, usually wrapped in HTTPS. A man in the middle that you trust.
All you have to do is expose the desired port(s) to all addresses:
# ...
- ports:
- 8080:8080
…and obviously to set the URL environment variables to localhost or whatever address the server uses.


At work, we use PiSignage for a large overhead screen. It’s based on Debian and uses a fullscreen Firefox running in the labwc compositor. The developer advertises a management server (cloud or self-hosted) to manage multiple connected devices, but it’s completely optional (superfluous in my opinion) and the standalone web UI is perfectly usable.