diff --git a/meta-arm/scripts/layer-overview.py b/meta-arm/scripts/layer-overview.py
new file mode 100755
index 0000000..326470e
--- /dev/null
+++ b/meta-arm/scripts/layer-overview.py
@@ -0,0 +1,74 @@
+#! /usr/bin/env python3
+
+"""
+Print an overview of the layer to help writing release notes.
+
+Output includes sublayers, machines, recipes.
+"""
+
+import argparse
+import sys
+
+# TODO:
+# - More human-readable output
+# - Diff mode, give two revisions and list the changes
+
+def is_layer(path):
+    """
+    Determine if this path looks like a layer (is a directory and contains conf/layer.conf).
+    """
+    return path.is_dir() and (path / "conf" / "layer.conf").exists()
+
+
+def print_layer(layer):
+    """
+    Print a summary of the layer.
+    """
+    print(layer.name)
+
+    machines = sorted(p for p in layer.glob("conf/machine/*.conf"))
+    if machines:
+        print(" Machines")
+        for m in machines:
+            print(f"  {m.stem}")
+        print()
+
+    recipes = sorted((p for p in layer.glob("recipes-*/*/*.bb")), key=lambda p:p.name)
+    if recipes:
+        print(" Recipes")
+        for r in recipes:
+            if "_" in r.stem:
+                pn, pv = r.stem.rsplit("_", 1)
+                print(f"  {pn} {pv}")
+            else:
+                print(f"  {r.stem}")
+        print()
+
+
+parser = argparse.ArgumentParser()
+parser.add_argument("repository")
+parser.add_argument("revision", nargs="?")
+args = parser.parse_args()
+
+if args.revision:
+    import gitpathlib
+    base = gitpathlib.GitPath(args.repository, args.revision)
+else:
+    import pathlib
+    base = pathlib.Path(args.repository)
+
+if is_layer(base):
+    print_layer(base)
+else:
+    sublayers = sorted(p for p in base.glob("meta-*") if is_layer(p))
+    if sublayers:
+        print("Sub-Layers")
+        for l in sublayers:
+            print(f" {l.name}")
+        print()
+
+        for layer in sublayers:
+            print_layer(layer)
+    else:
+        print(f"No layers found in {base}", file=sys.stderr)
+        sys.exit(1)