+<!--
+SPDX-FileCopyrightText: 2023 EfficiOS, Inc.
+
+SPDX-License-Identifier: CC-BY-4.0
+-->
+
+To build the examples from the source tree, the `BUILD_EXAMPLES_FROM_TREE`
+environment variable must be defined. This will ensure the examples Makefiles
+use the source tree's public header files and binaries.