diff --git a/.github/workflows/test-js.yml b/.github/workflows/test-js.yml
index 75bd17b..a42caa7 100644
--- a/.github/workflows/test-js.yml
+++ b/.github/workflows/test-js.yml
@@ -1,82 +1,86 @@
 name: Run JS tests
 on:
-  - push
-  - pull_request
+  push:
 jobs:
+  node:
+    name: Node v${{ matrix.node }}
+    runs-on: ubuntu-24.04-arm
+    env:
+      MSHOULD_FAST: 1
+    strategy:
+      matrix: # LTS on Jan 2025. Hardcoded is more secure
+        node: [20, 22]
+    steps:
+      - uses: actions/checkout@1e31de5234b9f8995739874a8ce0492dc87873e2 # v4
+        with:
+          submodules: ${{ inputs.submodules || false }}
+      - name: Use Node.js ${{ matrix.node }}
+        uses: actions/setup-node@8f152de45cc393bb48ce5d89d36b731f54556e65 # v4
+        with:
+          registry-url: "https://registry.npmjs.org"
+          cache: npm
+          node-version: ${{ matrix.node }}
+      - run: npm install
+      - run: npm run build --if-present
+      - run: npm test
   bun:
     name: Bun
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04-arm
+    env:
+      MSHOULD_FAST: 1
     steps:
       - uses: actions/checkout@1e31de5234b9f8995739874a8ce0492dc87873e2 # v4
+        with:
+          submodules: ${{ inputs.submodules || false }}
       - uses: oven-sh/setup-bun@4bc047ad259df6fc24a6c9b0f9a0cb08cf17fbe5 # v2.0.1
+        with:
+          bun-version: latest
       - run: bun install
-      - run: bun run build
-      - run: bun test/index.js
+      - run: bun run --if-present build
+      - run: bun run --if-present test:bun
+        name: Run test:bun if present
   deno:
     name: Deno
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04-arm
     steps:
       - uses: actions/checkout@1e31de5234b9f8995739874a8ce0492dc87873e2 # v4
+        with:
+          submodules: ${{ inputs.submodules || false }}
       - uses: denoland/setup-deno@909cc5acb0fdd60627fb858598759246509fa755 # v2.0.2
-      - run: deno install
-      - run: deno task build
-      - run: deno --allow-env --allow-read --allow-write test/index.js
+        with:
+          deno-version: v2.x
+      - run: grep -q 'test:deno' package.json && deno install || exit 0
+        name: Run deno install if test:deno is present
+      - run: grep -q 'build' package.json && deno task build || exit 0
+        name: Run build if present
+      - run: grep -q 'test:deno' package.json && deno task test:deno || exit 0
+        name: Run test:deno if present
   lint:
     name: Lint
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-24.04-arm
     steps:
       - uses: actions/checkout@1e31de5234b9f8995739874a8ce0492dc87873e2 # v4
       - uses: actions/setup-node@8f152de45cc393bb48ce5d89d36b731f54556e65 # v4
         with:
-          registry-url: 'https://registry.npmjs.org'
+          registry-url: "https://registry.npmjs.org"
           cache: npm
       - run: npm install
       - run: npm run build --if-present
       - run: npm run lint --if-present
-  node:
-    name: Node v${{ matrix.node }}
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        node: [20, 22]
-    steps:
-      - uses: actions/checkout@1e31de5234b9f8995739874a8ce0492dc87873e2 # v4
-      - name: Use Node.js ${{ matrix.node }}
-        uses: actions/setup-node@8f152de45cc393bb48ce5d89d36b731f54556e65 # v4
-        with:
-          node-version: ${{ matrix.node }}
-          registry-url: 'https://registry.npmjs.org'
-          cache: npm
-      - run: npm install
-      - run: npm run build --if-present
-      - run: npm test
-  node_polyfill:
-    name: Node v${{ matrix.node }} with polyfill
-    runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        node:
-          - 18
-          - 20
-          - 22
-    steps:
-      - uses: actions/checkout@1e31de5234b9f8995739874a8ce0492dc87873e2 # v4
-      - name: Use Node.js ${{ matrix.node }}
-        uses: actions/setup-node@8f152de45cc393bb48ce5d89d36b731f54556e65 # v4
-        with:
-          node-version: ${{ matrix.node }}
-      - run: npm install
-      - run: npm run build --if-present
-      - run: npm run test:webcrypto
   coverage:
-    name: Measure coverage on Node
-    runs-on: ubuntu-latest
+    name: Measure coverage
+    runs-on: ubuntu-24.04-arm
+    env:
+      MSHOULD_FAST: 0
     steps:
       - uses: actions/checkout@1e31de5234b9f8995739874a8ce0492dc87873e2 # v4
+        with:
+          submodules: ${{ inputs.submodules || false }}
       - uses: actions/setup-node@8f152de45cc393bb48ce5d89d36b731f54556e65 # v4
         with:
-          registry-url: 'https://registry.npmjs.org'
+          registry-url: "https://registry.npmjs.org"
           cache: npm
       - run: npm install
       - run: npm run build --if-present
-      - run: npm run test:coverage --if-present
+      - run: npm install --no-save c8@10.1.2
+      - run: npx c8 npm test