Add restart/reload note about env variables

tannewt · tannewt · commit 7ec01bbdbf6d · 2025-07-16T14:14:04.000-07:00
Fixes #10450
diff --git a/docs/environment.rst b/docs/environment.rst
@@ -53,8 +53,9 @@ Details of the toml language subset
 CircuitPython behavior
 ----------------------
 
-CircuitPython will also read the environment to configure its behavior. Other
-keys are ignored by CircuitPython. Here are the keys it uses:
+CircuitPython will also read the environment to configure its behavior. Some keys are read at
+startup once and others are read on reload. If a reload doesn't change things, then try a restart.
+Other keys are ignored by CircuitPython. Here are the keys it uses:
 
 Core CircuitPython keys
 ^^^^^^^^^^^^^^^^^^^^^^^
