diff --git a/.github/dependabot.yml b/.github/dependabot.yml
index 379998a..a585a61 100644
--- a/.github/dependabot.yml
+++ b/.github/dependabot.yml
@@ -26,6 +26,15 @@ updates:
       interval: "daily"
       timezone: "Europe/Helsinki"
     groups:
-      github-actions:
+      gitsubmodule:
+        patterns:
+          - "*"
+
+  - package-ecosystem: "npm"
+    directory: "/"
+    schedule:
+      interval: "daily"
+    groups:
+      npm:
         patterns:
           - "*"
diff --git a/.gitignore b/.gitignore
index 277d86a..f971ab8 100644
--- a/.gitignore
+++ b/.gitignore
@@ -9,3 +9,4 @@ keys.txt.asc
 .jekyll-cache
 .jekyll-metadata
 vendor/
+node_modules/
diff --git a/package.json b/package.json
new file mode 100644
index 0000000..b6622bf
--- /dev/null
+++ b/package.json
@@ -0,0 +1,6 @@
+{
+  "dependencies": {
+    "@prettier/plugin-xml": "3.4.1",
+    "prettier": "3.2.5"
+  }
+}
diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
new file mode 100644
index 0000000..c4a099a
--- /dev/null
+++ b/pnpm-lock.yaml
@@ -0,0 +1,68 @@
+lockfileVersion: "9.0"
+
+settings:
+  autoInstallPeers: true
+  excludeLinksFromLockfile: false
+
+importers:
+  .:
+    dependencies:
+      "@prettier/plugin-xml":
+        specifier: 3.4.1
+        version: 3.4.1(prettier@3.2.5)
+      prettier:
+        specifier: 3.2.5
+        version: 3.2.5
+
+packages:
+  "@prettier/plugin-xml@3.4.1":
+    resolution:
+      {
+        integrity: sha512-Uf/6/+9ez6z/IvZErgobZ2G9n1ybxF5BhCd7eMcKqfoWuOzzNUxBipNo3QAP8kRC1VD18TIo84no7LhqtyDcTg==,
+      }
+    peerDependencies:
+      prettier: ^3.0.0
+
+  "@xml-tools/parser@1.0.11":
+    resolution:
+      {
+        integrity: sha512-aKqQ077XnR+oQtHJlrAflaZaL7qZsulWc/i/ZEooar5JiWj1eLt0+Wg28cpa+XLney107wXqneC+oG1IZvxkTA==,
+      }
+
+  chevrotain@7.1.1:
+    resolution:
+      {
+        integrity: sha512-wy3mC1x4ye+O+QkEinVJkPf5u2vsrDIYW9G7ZuwFl6v/Yu0LwUuT2POsb+NUWApebyxfkQq6+yDfRExbnI5rcw==,
+      }
+
+  prettier@3.2.5:
+    resolution:
+      {
+        integrity: sha512-3/GWa9aOC0YeD7LUfvOG2NiDyhOWRvt1k+rcKhOuYnMY24iiCphgneUfJDyFXd6rZCAnuLBv6UeAULtrhT/F4A==,
+      }
+    engines: { node: ">=14" }
+    hasBin: true
+
+  regexp-to-ast@0.5.0:
+    resolution:
+      {
+        integrity: sha512-tlbJqcMHnPKI9zSrystikWKwHkBqu2a/Sgw01h3zFjvYrMxEDYHzzoMZnUrbIfpTFEsoRnnviOXNCzFiSc54Qw==,
+      }
+
+snapshots:
+  "@prettier/plugin-xml@3.4.1(prettier@3.2.5)":
+    dependencies:
+      "@xml-tools/parser": 1.0.11
+      prettier: 3.2.5
+
+  "@xml-tools/parser@1.0.11":
+    dependencies:
+      chevrotain: 7.1.1
+
+  chevrotain@7.1.1:
+    dependencies:
+      regexp-to-ast: 0.5.0
+
+  prettier@3.2.5: {}
+
+  regexp-to-ast@0.5.0: {}