diff --git a/.github/workflows/nodejs.yml b/.github/workflows/nodejs.yml
index d269133..9b2c2c0 100644
--- a/.github/workflows/nodejs.yml
+++ b/.github/workflows/nodejs.yml
@@ -1,17 +1,23 @@
 name: Node CI
-
-on: [push, pull_request]
+on:
+  - push
+  - pull_request
 jobs:
   test:
-    name: v20 @ ubuntu-latest
+    name: v${{ matrix.node }} @ ubuntu-latest
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node:
+          - 18
+          - 20
     steps:
-    - uses: actions/checkout@v3
-    - name: Use Node.js ${{ matrix.node }}
-      uses: actions/setup-node@v3
-      with:
-        node-version: 20
-    - run: npm install
-    - run: npm run build --if-present
-    - run: npm test
-    - run: npm run lint --if-present
+      - 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 test
+      - run: npm run lint --if-present
diff --git a/.github/workflows/publish-npm.yml b/.github/workflows/publish-npm.yml
index 3438a7f..339e831 100644
--- a/.github/workflows/publish-npm.yml
+++ b/.github/workflows/publish-npm.yml
@@ -1,23 +1,23 @@
 name: Publish Package to npm
 on:
- release:
-   types: [created]
+  release:
+    types: [created]
 jobs:
- build:
-   runs-on: ubuntu-latest
-   permissions:
-     contents: read
-     id-token: write
-   steps:
-     - uses: actions/checkout@8e5e7e5ab8b370d6c329ec480221332ada57f0ab # v3
-     - uses: actions/setup-node@64ed1c7eab4cce3362f8c340dee64e5eaeef8f7c # v3
-       with:
-         node-version: 20
-         registry-url: 'https://registry.npmjs.org'
-         cache: npm
-     - run: npm install -g npm
-     - run: npm ci
-     - run: npm run build
-     - run: npm publish --provenance --access public
-       env:
-         NODE_AUTH_TOKEN: ${{ secrets.NPM_PUBLISH_TOKEN }}
+  build:
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      id-token: write
+    steps:
+      - uses: actions/checkout@1e31de5234b9f8995739874a8ce0492dc87873e2 # v4
+      - uses: actions/setup-node@8f152de45cc393bb48ce5d89d36b731f54556e65 # v4
+        with:
+          node-version: 20
+          registry-url: 'https://registry.npmjs.org'
+          cache: npm
+      - run: npm install -g npm
+      - run: npm ci
+      - run: npm run build
+      - run: npm publish --provenance --access public
+        env:
+          NODE_AUTH_TOKEN: ${{ secrets.NPM_PUBLISH_TOKEN }}
diff --git a/README.md b/README.md
index 29530b5..d0ab5aa 100644
--- a/README.md
+++ b/README.md
@@ -9,7 +9,7 @@ Audited & minimal implementation of BIP32 hierarchical deterministic (HD) wallet
   [noble-curves](https://github.com/paulmillr/noble-curves),
   [noble-hashes](https://github.com/paulmillr/noble-hashes),
   and [scure-base](https://github.com/paulmillr/scure-base)
-- 🪶 Only 418KB all-bundled: much smaller than similar libraries
+- 🪶 300 lines. 90KB with all dependencies
 
 Check out [scure-bip39](https://github.com/paulmillr/scure-bip39) if you need mnemonic phrases.
 See [ed25519-keygen](https://github.com/paulmillr/ed25519-keygen) if you need SLIP-0010/BIP32 ed25519 hdkey implementation.