diff --git a/kmk/extensions/international.py b/kmk/extensions/international.py
new file mode 100644
index 0000000..59fd037
--- /dev/null
+++ b/kmk/extensions/international.py
@@ -0,0 +1,29 @@
+from kmk.extensions import Extension
+from kmk.keys import make_key
+
+
+class International(Extension):
+    def __init__(self):
+        # International
+        make_key(code=50, names=('NONUS_HASH', 'NUHS'))
+        make_key(code=100, names=('NONUS_BSLASH', 'NUBS'))
+        make_key(code=101, names=('APP', 'APPLICATION', 'SEL', 'WINMENU'))
+
+        make_key(code=135, names=('INT1', 'RO'))
+        make_key(code=136, names=('INT2', 'KANA'))
+        make_key(code=137, names=('INT3', 'JYEN'))
+        make_key(code=138, names=('INT4', 'HENK'))
+        make_key(code=139, names=('INT5', 'MHEN'))
+        make_key(code=140, names=('INT6',))
+        make_key(code=141, names=('INT7',))
+        make_key(code=142, names=('INT8',))
+        make_key(code=143, names=('INT9',))
+        make_key(code=144, names=('LANG1', 'HAEN'))
+        make_key(code=145, names=('LANG2', 'HAEJ'))
+        make_key(code=146, names=('LANG3',))
+        make_key(code=147, names=('LANG4',))
+        make_key(code=148, names=('LANG5',))
+        make_key(code=149, names=('LANG6',))
+        make_key(code=150, names=('LANG7',))
+        make_key(code=151, names=('LANG8',))
+        make_key(code=152, names=('LANG9',))
diff --git a/kmk/extensions/media_keys.py b/kmk/extensions/media_keys.py
new file mode 100644
index 0000000..bf4d63e
--- /dev/null
+++ b/kmk/extensions/media_keys.py
@@ -0,0 +1,28 @@
+from kmk.extensions import Extension
+from kmk.keys import make_consumer_key
+
+
+class Layers(Extension):
+    def __init__(self):
+        # Consumer ("media") keys. Most known keys aren't supported here. A much
+        # longer list used to exist in this file, but the codes were almost certainly
+        # incorrect, conflicting with each other, or otherwise 'weird'. We'll add them
+        # back in piecemeal as needed. PRs welcome.
+        #
+        # A super useful reference for these is http://www.freebsddiary.org/APC/usb_hid_usages.php
+        # Note that currently we only have the PC codes. Recent MacOS versions seem to
+        # support PC media keys, so I don't know how much value we would get out of
+        # adding the old Apple-specific consumer codes, but again, PRs welcome if the
+        # lack of them impacts you.
+        make_consumer_key(code=226, names=('AUDIO_MUTE', 'MUTE'))  # 0xE2
+        make_consumer_key(code=233, names=('AUDIO_VOL_UP', 'VOLU'))  # 0xE9
+        make_consumer_key(code=234, names=('AUDIO_VOL_DOWN', 'VOLD'))  # 0xEA
+        make_consumer_key(code=181, names=('MEDIA_NEXT_TRACK', 'MNXT'))  # 0xB5
+        make_consumer_key(code=182, names=('MEDIA_PREV_TRACK', 'MPRV'))  # 0xB6
+        make_consumer_key(code=183, names=('MEDIA_STOP', 'MSTP'))  # 0xB7
+        make_consumer_key(
+            code=205, names=('MEDIA_PLAY_PAUSE', 'MPLY')
+        )  # 0xCD (this may not be right)
+        make_consumer_key(code=184, names=('MEDIA_EJECT', 'EJCT'))  # 0xB8
+        make_consumer_key(code=179, names=('MEDIA_FAST_FORWARD', 'MFFD'))  # 0xB3
+        make_consumer_key(code=180, names=('MEDIA_REWIND', 'MRWD'))  # 0xB4