mention ui development proxy too

guide/developing-ui.md

@@ -1,4 +1,4 @@
-# Working on UI development <!-- omit in toc -->
+# Developing the UI <!-- omit in toc -->
 
 * [Getting started](#getting-started)
 * [Overriding defaults](#overriding-defaults)

ref/config.md

@@ -104,7 +104,10 @@ keys are understood:
     `uiDir = { bundled = true }` if a UI was built into the binary, or
     `/usr/local/lib/moonfire-nvr/ui` otherwise. Release builds have UIs
     built in; you can replicate this yourself via `--features=bundled` or `--features=bundled-ui`
-    when [building the server](../guide/build.md).
+    when [building the server](../guide/build.md). **Note:** it's unusual
+    to override this value. For UI development, a much more pleasant
+    workflow is to use a hot-reloading proxy server as described in
+    [this guide](../guide/developing-ui.md).
 *   `workerThreads`: number of [tokio](https://tokio.rs/) worker threads to
     use. Defaults to the number of CPUs on the system. This normally does not
     need to be changed, but reducing it may slightly lower idle CPU usage.