diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 6e4ed8dc..f76c55cf 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -79,6 +79,16 @@ jobs:
           ruby-version: ${{ matrix.ruby }}
           bundler-cache: true
 
+      - uses: pnpm/action-setup@v4
+
+      - uses: actions/setup-node@v6
+        with:
+          node-version: "24"
+          cache: "pnpm"
+
+      - name: Pnpm install
+        run: pnpm install
+
       - name: Tests
         env:
           TESTOPTS: --verbose
diff --git a/.gitignore b/.gitignore
index 112d8f88..b6beeeb0 100644
--- a/.gitignore
+++ b/.gitignore
@@ -16,7 +16,5 @@ test/tmp
 test/version_tmp
 tmp
 *.swp
-.rubocop-https---raw-githubusercontent-com-discourse-discourse-master--rubocop-yml
 .byebug_history
 node_modules/
-yarn.lock
diff --git a/DEV.md b/DEV.md
deleted file mode 100644
index 6440f763..00000000
--- a/DEV.md
+++ /dev/null
@@ -1,7 +0,0 @@
-### How to Publish to NPM
-
-1. First, edit `package.json` and bump the version.
-
-2. Log in to npm `yarn login`
-
-3. Publish: `yarn publish`
diff --git a/Rakefile b/Rakefile
index 384510f7..da348e92 100644
--- a/Rakefile
+++ b/Rakefile
@@ -35,7 +35,7 @@ end
 namespace :jasmine do
   desc "Run Jasmine tests in headless mode"
   task 'ci' do
-    if !system("npx jasmine-browser-runner runSpecs")
+    if !system("pnpm jasmine-browser-runner runSpecs")
       exit 1
     end
   end