diff --git a/configuration/common/programs.nix b/configuration/common/programs.nix
index f9c9d82..87889c9 100644
--- a/configuration/common/programs.nix
+++ b/configuration/common/programs.nix
@@ -6,6 +6,7 @@
     # My system is fucked
     gptfdisk
     parted
+    grow-last-partition-and-filesystem
 
     # Normal usage
     htop
diff --git a/flake.lock b/flake.lock
index 66c3161..604fd0d 100644
--- a/flake.lock
+++ b/flake.lock
@@ -646,11 +646,11 @@
     },
     "nixpkgs_5": {
       "locked": {
-        "lastModified": 1756386758,
-        "narHash": "sha256-1wxxznpW2CKvI9VdniaUnTT2Os6rdRJcRUf65ZK9OtE=",
+        "lastModified": 1756542300,
+        "narHash": "sha256-tlOn88coG5fzdyqz6R93SQL5Gpq+m/DsWpekNFhqPQk=",
         "owner": "NixOS",
         "repo": "nixpkgs",
-        "rev": "dfb2f12e899db4876308eba6d93455ab7da304cd",
+        "rev": "d7600c775f877cd87b4f5a831c28aa94137377aa",
         "type": "github"
       },
       "original": {
diff --git a/pkgs/bijwerken-system-upgrade/bijwerken-system-upgrade.sh b/pkgs/bijwerken-system-upgrade/bijwerken-system-upgrade.sh
index 729c5b1..2c5685e 100755
--- a/pkgs/bijwerken-system-upgrade/bijwerken-system-upgrade.sh
+++ b/pkgs/bijwerken-system-upgrade/bijwerken-system-upgrade.sh
@@ -40,7 +40,7 @@ if [[ -z $NO_CONFIRM ]]; then
 fi
 
 echo "Download ${STORE_PATH}"
-nix copy --from "https://nix-cache.clerie.de" "${STORE_PATH}"
+nix copy --to daemon "${STORE_PATH}"
 
 echo "Add to system profile"
 nix-env -p "/nix/var/nix/profiles/system" --set "${STORE_PATH}"
diff --git a/pkgs/grow-last-partition-and-filesystem/default.nix b/pkgs/grow-last-partition-and-filesystem/default.nix
new file mode 100644
index 0000000..06dac05
--- /dev/null
+++ b/pkgs/grow-last-partition-and-filesystem/default.nix
@@ -0,0 +1,17 @@
+{
+  e2fsprogs,
+  jq,
+  parted,
+  writeShellApplication,
+}:
+
+writeShellApplication {
+  name = "grow-last-partition-and-filesystem";
+  text = builtins.readFile ./grow-last-partition-and-filesystem.sh;
+  runtimeInputs = [
+    e2fsprogs
+    jq
+    parted
+  ];
+}
+
diff --git a/pkgs/grow-last-partition-and-filesystem/grow-last-partition-and-filesystem.sh b/pkgs/grow-last-partition-and-filesystem/grow-last-partition-and-filesystem.sh
new file mode 100755
index 0000000..864b035
--- /dev/null
+++ b/pkgs/grow-last-partition-and-filesystem/grow-last-partition-and-filesystem.sh
@@ -0,0 +1,29 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+if [[ $# -ne 1 ]]; then
+	echo "Pass device to grow as first argument:"
+	echo "grow-last-partition-and-filesystem DEVICE"
+
+	exit 1
+fi
+
+DEVICE="$1"
+
+PARTITIONDATA="$(parted --script --json --fix "${DEVICE}" print)"
+PARTNUMBER="$(echo "${PARTITIONDATA}" | jq -r '.disk.partitions | last | .number')"
+PARTNAME="$(echo "${PARTITIONDATA}" | jq -r '.disk.partitions | last | .name')"
+
+echo "Growing partition ${DEVICE}${PARTNUMBER} (${PARTNAME})"
+echo
+
+parted "${DEVICE}" resizepart "${PARTNUMBER}" 100%
+
+echo
+echo "Resizing filesystem"
+echo
+
+resize2fs "${DEVICE}${PARTNUMBER}"
+
+echo "Done."
diff --git a/pkgs/overlay.nix b/pkgs/overlay.nix
index 1d66db8..8fd5cce 100644
--- a/pkgs/overlay.nix
+++ b/pkgs/overlay.nix
@@ -19,6 +19,7 @@ final: prev: {
   git-diff-word = final.callPackage ./git-diff-word {};
   git-pp = final.callPackage ./git-pp {};
   git-show-link = final.callPackage ./git-show-link {};
+  grow-last-partition-and-filesystem = final.callPackage ./grow-last-partition-and-filesystem {};
   nix-remove-result-links = final.callPackage ./nix-remove-result-links {};
   nixfiles-auto-install = final.callPackage ./nixfiles/nixfiles-auto-install.nix {};
   nixfiles-generate-config = final.callPackage ./nixfiles/nixfiles-generate-config.nix {};