diff --git a/bashrc/bash_profile b/bashrc/bash_profile
index 2c0336f..3ecddeb 100644
--- a/bashrc/bash_profile
+++ b/bashrc/bash_profile
@@ -7,6 +7,7 @@
 # env
 export GTK_THEME=tokyonight-dark
 export XCURSOR_THEME=catppuccin-mocha-dark-cursors
+export XCURSOR_SIZE=24
 
 # bspwm
 # exec startx
diff --git a/etc-udev-rules.d/98-backlight.rules b/etc-udev-rules.d/98-backlight.rules
new file mode 100644
index 0000000..c4b1e9b
--- /dev/null
+++ b/etc-udev-rules.d/98-backlight.rules
@@ -0,0 +1 @@
+ACTION=="add", SUBSYSTEM=="backlight", RUN+="/bin/chgrp video $sys$devpath/brightness", RUN+="/bin/chmod g+w $sys$devpath /brightness"
diff --git a/etc-udev-rules.d/99-hid-apple.rules b/etc-udev-rules.d/99-hid-apple.rules
new file mode 100644
index 0000000..c312dd9
--- /dev/null
+++ b/etc-udev-rules.d/99-hid-apple.rules
@@ -0,0 +1 @@
+ACTION=="add", SUBSYSTEM=="hid", DRIVER=="apple", RUN+="/bin/sh -c 'echo 2 > /sys/module/hid_apple/parameters/fnmode'"
diff --git a/etc-udev-rules.d/README.md b/etc-udev-rules.d/README.md
new file mode 100644
index 0000000..f48f2cd
--- /dev/null
+++ b/etc-udev-rules.d/README.md
@@ -0,0 +1,6 @@
+sudo udevadm control --reload-rules
+sudo udevadm trigger
+
+
+- backlight: for backlight fn key
+- apple thing: for lofree keyboard