diff --git a/configuration.nix b/configuration.nix
index 25897cd..cd718c4 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -1,6 +1,6 @@
 { pkgs, ... }:
 {
-  boot.kernelPackages = pkgs.linuxPackages_vf2;
+  boot.kernelPackages = pkgs.linuxPackages_testing;
   boot.kernelParams = [
     "console=tty0"
     "console=ttyS0,115200"
diff --git a/flake.nix b/flake.nix
index d4dd52d..6f305c1 100644
--- a/flake.nix
+++ b/flake.nix
@@ -8,12 +8,6 @@
   inputs.nixpkgs-native.url = "github:NickCao/nixpkgs/riscv";
 
   outputs = inputs: {
-    overlays.default = self: super: {
-      linuxPackages_vf2 = self.linuxPackagesFor (self.callPackage ./linux-vf2.nix {
-        kernelPatches = [ ];
-      });
-    };
-
     overlays.native-fixes = self: super: {
       cryptsetup = super.cryptsetup.overrideAttrs (old: {
         doCheck = false;
@@ -159,7 +153,6 @@
         modules = [
           ({ lib, config, pkgs, modulesPath, ... }: {
             nixpkgs = {
-              overlays = [ inputs.self.overlays.default ];
               localSystem.config = "x86_64-linux";
               crossSystem.config = "riscv64-linux";
             };
@@ -173,7 +166,6 @@
         modules = [
           ({ lib, config, pkgs, modulesPath, ... }: {
             nixpkgs = {
-              overlays = [ inputs.self.overlays.default ];
               localSystem.config = "x86_64-linux";
               crossSystem.config = "riscv64-linux";
             };
@@ -188,7 +180,6 @@
         modules = [
           ({ lib, config, pkgs, modulesPath, ... }: {
             nixpkgs = {
-              overlays = [ inputs.self.overlays.default ];
               localSystem.config = "x86_64-linux";
               crossSystem.config = "riscv64-linux";
             };
@@ -204,7 +195,6 @@
           ({ lib, config, pkgs, modulesPath, ... }: {
             nixpkgs = {
               overlays = [
-                inputs.self.overlays.default
                 inputs.self.overlays.native-fixes
               ];
             };
@@ -219,7 +209,6 @@
           ({ lib, config, pkgs, modulesPath, ... }: {
             nixpkgs = {
               overlays = [
-                inputs.self.overlays.default
                 inputs.self.overlays.native-fixes
               ];
             };
@@ -235,7 +224,6 @@
           ({ lib, config, pkgs, modulesPath, ... }: {
             nixpkgs = {
               overlays = [
-                inputs.self.overlays.default
                 inputs.self.overlays.native-fixes
               ];
             };
diff --git a/linux-vf2.nix b/linux-vf2.nix
deleted file mode 100644
index fa9d6cd..0000000
--- a/linux-vf2.nix
+++ /dev/null
@@ -1,69 +0,0 @@
-{ lib
-, buildLinux
-, fetchFromGitHub
-, ...
-} @ args:
-
-let
-  modDirVersion = "6.6.0";
-in
-buildLinux (args // {
-  inherit modDirVersion;
-  version = "${modDirVersion}-vf2";
-
-  src = fetchFromGitHub {
-    owner = "starfive-tech";
-    repo = "linux";
-    rev = "076ede06c00a4069cd9f90d609eaf35bf1bdc68a";
-    hash = "sha256-oI048iCkvghEIiuDHbxNHtJz/krPwXPB/HB85YUaxL8=";
-  };
-
-  structuredExtraConfig = with lib.kernel; {
-    CPU_FREQ = yes;
-    CPUFREQ_DT = yes;
-    CPUFREQ_DT_PLATDEV = yes;
-    DMADEVICES = yes;
-    GPIO_SYSFS = yes;
-    HIBERNATION = yes;
-    NO_HZ_IDLE = yes;
-    POWER_RESET_GPIO_RESTART = yes;
-    PROC_KCORE = yes;
-    PWM = yes;
-    PWM_STARFIVE_PTC = yes;
-    RD_GZIP = yes;
-    SENSORS_SFCTEMP = yes;
-    SERIAL_8250_DW = yes;
-    SIFIVE_CCACHE = yes;
-    SIFIVE_PLIC = yes;
-
-    RTC_DRV_STARFIVE = yes;
-    SPI_PL022 = yes;
-    SPI_PL022_STARFIVE = yes;
-
-    I2C = yes;
-    MFD_AXP20X = yes;
-    MFD_AXP20X_I2C = yes;
-    REGULATOR_AXP20X = yes;
-
-    DRM = yes;
-    DRM_VERISILICON = yes;
-    STARFIVE_HDMI = yes;
-
-    PL330_DMA = no;
-
-    # Disable some drivers that we don't need to make the build leaner
-    NET_VENDOR_MELLANOX = no;
-    NET_VENDOR_MARVELL = no;
-    DRM_NOUVEAU = no;
-    DRM_INTEL = no;
-  };
-
-  preferBuiltin = true;
-
-  extraMeta = {
-    branch = "visionfive2";
-    maintainers = with lib.maintainers; [ misuzu ];
-    description = "Linux kernel for StarFive's VisionFive2";
-    platforms = [ "riscv64-linux" ];
-  };
-} // (args.argsOverride or { }))