-The CircuitPython compatibility layers described above are intended for devices which
-are running Micropython. Given the top level packages should be provided by any standard
-CircuitPython image, you shouldn't be trying to put those packages on any board
-with CircuitPython already installed.
-
-However, the test suites under testing.implementation.all are by design
-intended to run on either CircuitPython or the Micropython+compatibility layer, so that
-conformance can be achieved.
-
-Similarly the test suites under testing.implementation.micropython should only be run
-on Micropython and testing.implementation.circuitpython should only be run on CircuitPython
+The Micropython compatibility layers described above are intended to provide a CircuitPython-like API for devices which
+are running Micropython. Since corresponding packages should be built-in to any standard
+CircuitPython image, they have no value on a device already running CircuitPython and would likely conflict in unhappy ways.