diff --git a/linux/bcachefs/default.nix b/linux/bcachefs/default.nix
index 40828ea..600cc82 100644
--- a/linux/bcachefs/default.nix
+++ b/linux/bcachefs/default.nix
@@ -7,7 +7,7 @@
   modDirVersion = "6.3.0";
   source = builtins.fromJSON (builtins.readFile ./source.json);
 in
-  (buildLinux (args
+  buildLinux (args
     // {
       inherit modDirVersion;
       version = "6.3.0+${source.rev}";
@@ -25,11 +25,4 @@ in
         DYNAMIC_FTRACE = yes;
         FTRACE = yes;
       };
-    }))
-  .overrideAttrs (_: {
-    passthru.updateScript = [
-      ../../scripts/update-git.sh
-      "https://github.com/koverstreet/bcachefs"
-      "linux/bcachefs/source.json"
-    ];
-  })
+    })
diff --git a/linux/vf2/default.nix b/linux/vf2/default.nix
index 684d3fa..047911c 100644
--- a/linux/vf2/default.nix
+++ b/linux/vf2/default.nix
@@ -9,94 +9,84 @@
   modDirVersion = "6.4.0-rc6";
   source = builtins.fromJSON (builtins.readFile ./source.json);
 in
-  (
-    buildLinux (args
-      // {
-        inherit modDirVersion;
-        version = "${modDirVersion}-vf2";
+  buildLinux (args
+    // {
+      inherit modDirVersion;
+      version = "${modDirVersion}-vf2";
 
-        src = fetchFromGitHub {
-          owner = "starfive-tech";
-          repo = "linux";
-          inherit (source) rev sha256;
-        };
+      src = fetchFromGitHub {
+        owner = "starfive-tech";
+        repo = "linux";
+        inherit (source) rev sha256;
+      };
 
-        kernelPatches = [
-          # https://lore.kernel.org/all/20230524000012.15028-1-andre.przywara@arm.com/
-          rec {
-            name = "axp15060-1.patch";
-            patch = fetchpatch {
-              inherit name;
-              url = "https://lore.kernel.org/all/20230524000012.15028-2-andre.przywara@arm.com/raw";
-              hash = "sha256-kj4vQaT4CV29EHv8MtuTgM/semIPDdv2dmveo/X27vU=";
-            };
-          }
-          rec {
-            name = "axp15060-2.patch";
-            patch = fetchpatch {
-              inherit name;
-              url = "https://lore.kernel.org/all/20230524000012.15028-3-andre.przywara@arm.com/raw";
-              hash = "sha256-QCPQyKqoapMtqEDB9QgAuXA7n8e1OtG+YlIgeSQBxXM=";
-            };
-          }
-          rec {
-            name = "axp15060-3.patch";
-            patch = fetchpatch {
-              inherit name;
-              url = "https://lore.kernel.org/all/20230524000012.15028-4-andre.przywara@arm.com/raw";
-              hash = "sha256-SpKDm4PXR6qs7kX5SGVpFF/EPBijMhX1NsFUHrlCynM=";
-            };
-          }
-        ];
+      kernelPatches = [
+        # https://lore.kernel.org/all/20230524000012.15028-1-andre.przywara@arm.com/
+        rec {
+          name = "axp15060-1.patch";
+          patch = fetchpatch {
+            inherit name;
+            url = "https://lore.kernel.org/all/20230524000012.15028-2-andre.przywara@arm.com/raw";
+            hash = "sha256-kj4vQaT4CV29EHv8MtuTgM/semIPDdv2dmveo/X27vU=";
+          };
+        }
+        rec {
+          name = "axp15060-2.patch";
+          patch = fetchpatch {
+            inherit name;
+            url = "https://lore.kernel.org/all/20230524000012.15028-3-andre.przywara@arm.com/raw";
+            hash = "sha256-QCPQyKqoapMtqEDB9QgAuXA7n8e1OtG+YlIgeSQBxXM=";
+          };
+        }
+        rec {
+          name = "axp15060-3.patch";
+          patch = fetchpatch {
+            inherit name;
+            url = "https://lore.kernel.org/all/20230524000012.15028-4-andre.przywara@arm.com/raw";
+            hash = "sha256-SpKDm4PXR6qs7kX5SGVpFF/EPBijMhX1NsFUHrlCynM=";
+          };
+        }
+      ];
 
-        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;
+      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;
+        RTC_DRV_STARFIVE = yes;
+        SPI_PL022 = yes;
+        SPI_PL022_STARFIVE = yes;
 
-          I2C = yes;
-          MFD_AXP20X = yes;
-          MFD_AXP20X_I2C = yes;
-          REGULATOR_AXP20X = yes;
+        I2C = yes;
+        MFD_AXP20X = yes;
+        MFD_AXP20X_I2C = yes;
+        REGULATOR_AXP20X = yes;
 
-          # FATAL: modpost: drivers/gpu/drm/verisilicon/vs_drm: struct of_device_id is not terminated with a NULL entry!
-          DRM_VERISILICON = no;
+        # FATAL: modpost: drivers/gpu/drm/verisilicon/vs_drm: struct of_device_id is not terminated with a NULL entry!
+        DRM_VERISILICON = no;
 
-          PL330_DMA = no;
-        };
+        PL330_DMA = no;
+      };
 
-        preferBuiltin = true;
+      preferBuiltin = true;
 
-        extraMeta = {
-          branch = "JH7110_VisionFive2_upstream";
-          description = "Linux kernel for StarFive's VisionFive2";
-          platforms = ["riscv64-linux"];
-        };
-      }
-      // (args.argsOverride or {}))
-  )
-  .overrideAttrs (_: {
-    passthru.updateScript = [
-      ../../scripts/update-git.sh
-      "https://github.com/starfive-tech/linux"
-      "linux/bcachefs/source.json"
-      "--rev refs/heads/JH7110_VisionFive2_upstream"
-    ];
-  })
+      extraMeta = {
+        branch = "JH7110_VisionFive2_upstream";
+        description = "Linux kernel for StarFive's VisionFive2";
+        platforms = ["riscv64-linux"];
+      };
+    }
+    // (args.argsOverride or {}))
diff --git a/update.sh b/update.sh
new file mode 100755
index 0000000..a574a35
--- /dev/null
+++ b/update.sh
@@ -0,0 +1,5 @@
+#!/bin/sh
+
+./scripts/update-git.sh https://github.com/starfive-tech/linux linux/vf2/source.json "--rev refs/heads/JH7110_VisionFive2_upstream"
+./scripts/update-git.sh https://github.com/koverstreet/bcachefs linux/bcachefs/source.json
+nix-shell ./scripts/update.sh