diff --git a/d1/f1.sh b/d1/f1.sh
index 821f204..34cef3c 100644
--- a/d1/f1.sh
+++ b/d1/f1.sh
@@ -2,6 +2,7 @@
 
 mkdir -p ~/.local/bin
 cp dotfiles/.local/bin/commands ~/.local/bin/commands
+cp dotfiles/.local/bin/gnome-shortcuts-macbook-air ~/.local/bin/
 mkdir -p ~/.sway
 cp dotfiles/.sway/config ~/.sway/config
 cp dotfiles/.zshenv ~/.zshenv
diff --git a/dotfiles/.local/bin/commands b/dotfiles/.local/bin/commands
index aa53b44..8736100 100755
--- a/dotfiles/.local/bin/commands
+++ b/dotfiles/.local/bin/commands
@@ -21,16 +21,17 @@ import sys
 import tempfile
 import time
 import traceback
+from typing import (Literal, Optional,)
 
 
 logger = logging.getLogger(__name__)
 
 
 def custom_notify(
-    title=None,
-    msg=None,
-    timeout=None,
-):
+    title: Optional[str]=None,
+    msg: Optional[str]=None,
+    timeout: Optional[int]=None,
+) -> None:
     if timeout is None:
         timeout = 5
 
@@ -1683,7 +1684,7 @@ def pm_service(argv):
 
     print('')
 
-def scrap_yt_music(argv):
+def scrap_yt_music(argv: Iterable[str]) -> None:
     parser = optparse.OptionParser()
     parser.add_option(
         '--verbose',
@@ -1929,6 +1930,16 @@ def desktop_services(argv):
         type=int,
         help='0 - mac book air (no turbo boost, max pct 30, every 4 seconds',
     )
+    parser.add_option(
+        '--cpufreq-action',
+        dest='cpufreq_action',
+        default=None,
+        choices=[
+            'performance',
+            'powersave',
+        ],
+        #type=str,
+    )
     parser.add_option(
         '--battery',
         dest='battery',
@@ -2360,6 +2371,39 @@ def desktop_services(argv):
 
             return state
 
+    class Cpufreq:
+        @classmethod
+        @property
+        def profile(cls) -> Literal['applesmc.768']:
+            if os.path.exists('/sys/bus/platform/devices/applesmc.768'):
+                return 'applesmc.768'
+            else:
+                raise NotImplementedError
+
+        @classmethod
+        def powersave(cls):
+            if cls.profile == 'applesmc.768':
+                subprocess.check_call(r'''
+echo performance | tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor;
+echo powersave | tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor;
+echo 1 > /sys/bus/platform/devices/applesmc.768/fan1_manual;
+echo 2000 > /sys/bus/platform/devices/applesmc.768/fan1_output;
+                ''', shell=True)
+            else:
+                raise NotImplementedError
+
+        @classmethod
+        def performance(cls):
+            if cls.profile == 'applesmc.768':
+                subprocess.check_call(r'''
+echo powersave | tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor;
+echo performance | tee /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor;
+echo 1 > /sys/bus/platform/devices/applesmc.768/fan1_manual;
+echo 6500 > /sys/bus/platform/devices/applesmc.768/fan1_output;
+                ''', shell=True)
+            else:
+                raise NotImplementedError
+
     if options.backlight_increase or options.backlight_decrease:
         if options.backlight_increase:
             direction = Backlight.Direction.increase
@@ -2374,6 +2418,16 @@ def desktop_services(argv):
         )
 
         return
+
+    elif not options.cpufreq_action is None:
+        if options.cpufreq_action == 'performance':
+            Cpufreq.performance()
+        elif options.cpufreq_action == 'powersave':
+            Cpufreq.powersave()
+        else:
+            raise NotImplementedError
+
+        return
     else:
         pass
 
@@ -2852,7 +2906,7 @@ def suspend_timer(argv):
     print("suspend computer at %s" % t1.isoformat())
     subprocess.check_call(["systemctl", "suspend"]);
 
-def gnome_shortcuts(argv):
+def gnome_shortcuts(argv: list[str]) -> None:
     parser = optparse.OptionParser()
     parser.add_option(
         '-a', '--add',
@@ -2868,10 +2922,14 @@ def gnome_shortcuts(argv):
     options, args = parser.parse_args(argv)
 
     def commands_ids() -> list[str]:
-        t1 = json.loads(subprocess.check_output([
+        bindings = subprocess.check_output([
             'gsettings', 'get', 'org.gnome.settings-daemon.plugins.media-keys',
             'custom-keybindings',
-        ]).decode('utf-8').replace('\'', '"',))
+        ]).decode('utf-8').strip().replace('\'', '"',)
+        if bindings == '@as []':
+            t1 = []
+        else:
+            t1 = json.loads(bindings)
 
         return t1
 
@@ -3375,7 +3433,7 @@ def media_keys(argv):
             'mocp',
         ], stdout=subprocess.PIPE) == 0
 
-    def mocp_info():
+    def mocp_info() -> str:
         t1 = subprocess.check_output(['mocp', '-i'])
         t3 = t1.decode('utf-8')
         t2 = dict([
@@ -3470,13 +3528,13 @@ def media_keys(argv):
         msg=msg,
     )
 
-def commands_cli():
+def commands_cli() -> None:
     logging.getLogger().setLevel(logging.INFO)
     logger.setLevel(logging.INFO)
     handler = logging.StreamHandler(sys.stderr)
     logging.getLogger().addHandler(handler)
 
-    msg = None
+    msg : Optional[str] = None
 
     try:
         if sys.argv[1].startswith('media'):
diff --git a/dotfiles/.local/bin/gnome-shortcuts-macbook-air b/dotfiles/.local/bin/gnome-shortcuts-macbook-air
new file mode 100755
index 0000000..838b40f
--- /dev/null
+++ b/dotfiles/.local/bin/gnome-shortcuts-macbook-air
@@ -0,0 +1,13 @@
+#!/usr/bin/bash
+
+commands gnome-shortcuts \
+	-a \
+	'powersave' \
+	'commands desktop-services --cpufreq-action powersave' \
+	'<Shift><Alt>1'
+
+commands gnome-shortcuts \
+	-a \
+	'performance' \
+	'commands desktop-services --cpufreq-action performance' \
+	'<Shift><Alt>2'
diff --git a/dotfiles/etc/udev/rules.d/40-leds.rules b/dotfiles/etc/udev/rules.d/40-leds.rules
index 1b82b85..a4b6352 100644
--- a/dotfiles/etc/udev/rules.d/40-leds.rules
+++ b/dotfiles/etc/udev/rules.d/40-leds.rules
@@ -1,3 +1,6 @@
 ACTION=="add|change", SUBSYSTEM=="leds", DEVPATH=="/devices/pci0000:00/0000:00:1b.0/hdaudioC0D0/leds/hda::mute", RUN{program}+="/usr/bin/chmod 666 /sys$devpath/brightness"
 ACTION=="add|change", SUBSYSTEM=="leds", DEVPATH=="/devices/platform/applesmc.768/leds/smc::kbd_backlight", RUN{program}+="/usr/bin/chmod 666 /sys$devpath/brightness"
+ACTION=="add|change", DEVPATH=="/devices/platform/applesmc.768", RUN{program}+="/usr/bin/chmod 666 /sys$devpath/fan1_manual /sys$devpath/fan1_output"
 ACTION=="add|change", DEVPATH=="/class/backlight/intel_backlight", RUN{program}+="/usr/bin/chmod 666 /sys$devpath/brightness"
+ACTION=="add|change", DEVPATH=="/devices/system/cpu/", RUN{program}+="/usr/bin/chmod 666 /sys$devpath/cpufreq/scaling_governor"
+ACTION=="add|change", KERNEL=="cpu[0-9]", SUBSYSTEM=="cpu", RUN{program}+="/usr/bin/chmod 666 /sys$devpath/cpufreq/scaling_governor"
diff --git a/m b/m
index ff14816..d1716fb 100755
--- a/m
+++ b/m
@@ -27,5 +27,11 @@ def js(argv):
 
 if len(sys.argv) > 1 and sys.argv[1] == 'js':
     js(sys.argv[2:])
+elif len(sys.argv) > 1 and sys.argv[1] == 'mypy':
+    subprocess.check_call([
+        'mypy',
+        '--strict',
+        'dotfiles/.local/bin/commands',
+    ])
 else:
     raise NotImplementedError
diff --git a/requirements.txt b/requirements.txt
index a35c740..8153702 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -6,3 +6,4 @@ pyquery
 youtube-dl
 gdown
 aiohttp
+mypy