@@ -128,6 +128,20 @@ Follow these general steps to create your layer without using tools:
variable is a good way to indicate if your particular layer is
current.
+
+ .. note::
+
+ A layer does not have to contain only recipes ``.bb`` or append files
+ ``.bbappend``. Generally, developers create layers using
+ ``bitbake-layers create-layer``.
+ See ":ref:`dev-manual/layers:creating a general layer using the \`\`bitbake-layers\`\` script`",
+ explaining how the ``layer.conf`` file is created from a template located in
+ ``meta/lib/bblayers/templates/layer.conf``.
+ In fact, none of the variables set in ``layer.conf`` are mandatory,
+ except when :term:`BBFILE_COLLECTIONS` is present. In this case
+ :term:`LAYERSERIES_COMPAT` and :term:`BBFILE_PATTERN` have to be
+ defined too.
+
#. *Add Content:* Depending on the type of layer, add the content. If
the layer adds support for a machine, add the machine configuration
in a ``conf/machine/`` file within the layer. If the layer adds