diff --git a/base/packages.nix b/base/packages.nix
index a2645ed..be7c641 100644
--- a/base/packages.nix
+++ b/base/packages.nix
@@ -12,7 +12,6 @@
         fd
         htop
         ncdu
-        killall
         ranger nnn joshuto
         hexyl
         rink
diff --git a/hosts/development.nix b/hosts/development.nix
index 692305b..540e0cb 100644
--- a/hosts/development.nix
+++ b/hosts/development.nix
@@ -15,9 +15,6 @@
     };
 
     services.udev.extraRules = ''
-        # CH340 USB-serial
-        SUBSYSTEM=="tty", ATTRS{idVendor}=="1a86", ATTRS{idProduct}=="7523", MODE="0660", GROUP="plugdev"
-
         # ESP32 devkit USB-serial
         SUBSYSTEM=="tty", ATTRS{idVendor}=="1a86", ATTRS{idProduct}=="55d4", MODE="0660", GROUP="plugdev"