diff --git a/pkgs/servers/homepage-dashboard/default.nix b/pkgs/servers/homepage-dashboard/default.nix
index fd121b7a5b53..76a08bfec7e6 100644
--- a/pkgs/servers/homepage-dashboard/default.nix
+++ b/pkgs/servers/homepage-dashboard/default.nix
@@ -11,7 +11,6 @@
   lib,
   nixosTests,
   enableLocalIcons ? false,
-  nix-update-script,
 }:
 let
   dashboardIcons = fetchFromGitHub {
@@ -42,6 +41,7 @@ stdenv.mkDerivation (finalAttrs: {
   # This patch ensures that the cache implementation respects the env
   # variable `NIXPKGS_HOMEPAGE_CACHE_DIR`, which is set by default in the
   # wrapper below.
+  # The patch is automatically generated by the `update.sh` script.
   patches = [ ./prerender_cache_path.patch ];
 
   pnpmDeps = pnpm_10.fetchDeps {
@@ -101,7 +101,7 @@ stdenv.mkDerivation (finalAttrs: {
     tests = {
       inherit (nixosTests) homepage-dashboard;
     };
-    updateScript = nix-update-script { };
+    updateScript = ./update.sh;
   };
 
   meta = {
diff --git a/pkgs/servers/homepage-dashboard/update.sh b/pkgs/servers/homepage-dashboard/update.sh
new file mode 100755
index 000000000000..4b5069626263
--- /dev/null
+++ b/pkgs/servers/homepage-dashboard/update.sh
@@ -0,0 +1,66 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -I nixpkgs=./. -i bash -p curl jq git pnpm_10 sd
+# shellcheck shell=bash
+set -euo pipefail
+nixpkgs="$(pwd)"
+cd $(readlink -e $(dirname "${BASH_SOURCE[0]}"))
+
+# Generate the patch file that makes homepage-dashboard aware of the NIXPKGS_HOMEPAGE_CACHE_DIR environment variable.
+# Generating the patch this way ensures that both the patch is included, and the lock file is updated.
+generate_patch() {
+    local version; version="$1"
+    echo "Generating homepage-dashboard patch"
+
+    git clone -b "v$version" https://github.com/gethomepage/homepage.git src
+    pushd src
+
+    pnpm install
+    pnpm patch next
+    sd \
+      'this.serverDistDir = ctx.serverDistDir;' \
+      'this.serverDistDir = require("path").join((process.env.NIXPKGS_HOMEPAGE_CACHE_DIR || "/var/cache/homepage-dashboard"), "homepage");' \
+      node_modules/.pnpm_patches/next*/dist/server/lib/incremental-cache/file-system-cache.js
+    pnpm patch-commit node_modules/.pnpm_patches/next*
+
+    git add -A .
+    git diff -p --staged > ../prerender_cache_path.patch
+
+    popd
+    rm -rf src
+}
+
+# Update the hash of the homepage-dashboard source code in the Nix expression.
+update_homepage_dashboard_source() {
+    local version; version="$1"
+    echo "Updating homepage-dashboard source"
+
+    old_hash="$(nix eval --json --impure --expr "(import $nixpkgs/default.nix {}).homepage-dashboard.src.outputHash" | jq -r)"
+    old_version="$(nix eval --json --impure --expr "(import $nixpkgs/default.nix {}).homepage-dashboard.version" | jq -r)"
+    new_hash="$(nix-build --impure --expr "let src = (import $nixpkgs/default.nix {}).homepage-dashboard.src; in (src.overrideAttrs or (f: src // f src)) (_: { version = \"$version\"; outputHash = \"\"; outputHashAlgo = \"sha256\"; })" 2>&1 | tr -s ' ' | grep -Po "got: \K.+$")" || true
+
+    sed -i "s|${old_hash}|${new_hash}|g" default.nix
+    sed -i "s|${old_version}|${version}|g" default.nix
+}
+
+# Update the hash of the homepage-dashboard pnpm dependencies in the Nix expression.
+update_pnpm_deps_hash() {
+    echo "Updating homepage-dashboard pnpm deps hash"
+
+    old_hash="$(nix eval --json --impure --expr "(import $nixpkgs/default.nix {}).homepage-dashboard.pnpmDeps.outputHash" | jq -r)"
+    new_hash="$(nix-build --impure --expr "let src = (import $nixpkgs/default.nix {}).homepage-dashboard.pnpmDeps; in (src.overrideAttrs or (f: src // f src)) (_: { outputHash = \"\"; outputHashAlgo = \"sha256\"; })" 2>&1 | tr -s ' ' | grep -Po "got: \K.+$")" || true
+
+    sed -i "s|${old_hash}|${new_hash}|g" default.nix
+}
+
+LATEST_TAG="$(curl -s ${GITHUB_TOKEN:+-u ":$GITHUB_TOKEN"} https://api.github.com/repos/gethomepage/homepage/releases/latest | jq -r '.tag_name')"
+LATEST_VERSION="$(expr "$LATEST_TAG" : 'v\(.*\)')"
+CURRENT_VERSION="$(grep -Po "version = \"\K[^\"]+" default.nix)"
+
+if [[ "$CURRENT_VERSION" == "$LATEST_VERSION" ]]; then
+    echo "homepage-dashboard is up to date: ${CURRENT_VERSION}"
+    exit 0
+fi
+
+update_homepage_dashboard_source "$LATEST_VERSION"
+generate_patch "$LATEST_VERSION"
+update_pnpm_deps_hash