diff --git a/.github/workflows/ci-code-style.yml b/.github/workflows/ci-code-style.yml
deleted file mode 100644
index 32ecb44..0000000
--- a/.github/workflows/ci-code-style.yml
+++ /dev/null
@@ -1,31 +0,0 @@
-name: Code Style
-
-on:
-  - push
-  - fork
-  - pull_request
-
-jobs:
-  code-style:
-    runs-on: ubuntu-latest
-    name: 'Check code style for Node.js v${{ matrix.node-version }}'
-    strategy:
-      fail-fast: false
-      matrix:
-        node-version: ['19']
-    steps:
-      - uses: actions/setup-node@v3
-        with:
-          node-version: '${{ matrix.node-version }}'
-      - uses: actions/checkout@v3
-      - name: 'Cache node_modules'
-        uses: actions/cache@v3
-        with:
-          path: ~/.npm
-          key: ${{ runner.os }}-node-v${{ matrix.node-version }}-${{ hashFiles('**/package.json') }}
-          restore-keys: |
-            ${{ runner.os }}-node-v${{ matrix.node-version }}-
-      - name: Install dependencies
-        run: yarn install --dev
-      - name: Run syntax linter
-        run: yarn run cs
diff --git a/.github/workflows/ci-markdown-lint.yml b/.github/workflows/ci-markdown-lint.yml
deleted file mode 100755
index 63d551b..0000000
--- a/.github/workflows/ci-markdown-lint.yml
+++ /dev/null
@@ -1,16 +0,0 @@
-name: Markdown lint
-
-on:
-  - push
-  - fork
-  - pull_request
-
-jobs:
-  yml-lint:
-    runs-on: ubuntu-latest
-    name: 'Markdown lint'
-    steps:
-      - uses: actions/checkout@v3
-      - run: docker pull tmknom/markdownlint
-      - run: docker run --rm -v $(pwd):/work tmknom/markdownlint '**/*.md' --ignore node_modules --ignore CHANGELOG.md
-        shell: bash
diff --git a/.github/workflows/ci-test.yml b/.github/workflows/ci-test.yml
new file mode 100644
index 0000000..b32f5ad
--- /dev/null
+++ b/.github/workflows/ci-test.yml
@@ -0,0 +1,96 @@
+name: Test
+
+on:
+  - push
+
+jobs:
+
+  yml-lint:
+    runs-on: ubuntu-latest
+    name: 'YML lint'
+    timeout-minutes: 3
+    steps:
+      - uses: actions/checkout@v4
+      - run: docker pull cytopia/yamllint
+      - run: docker run --rm -t -v $(pwd):/data cytopia/yamllint --config-file=tests/.yamllint .
+
+  markdown-lint:
+    runs-on: ubuntu-latest
+    name: 'Markdown lint'
+    timeout-minutes: 3
+    steps:
+      - uses: actions/checkout@v4
+      - run: docker pull tmknom/markdownlint
+      - run: docker run --rm -v $(pwd):/work tmknom/markdownlint '**/*.md' --config tests/.markdownlintrc --ignore node_modules --ignore CHANGELOG.md --ignore var --ignore tmp
+
+  code-style:
+    runs-on: ubuntu-latest
+    name: 'Check code style for Node.js v${{ matrix.node-version }}'
+    strategy:
+      fail-fast: false
+      matrix:
+        node-version: ['20', '21']
+    steps:
+      - uses: actions/setup-node@v3
+        with:
+          node-version: '${{ matrix.node-version }}'
+      - uses: actions/checkout@v4
+      - name: 'Cache node_modules'
+        uses: actions/cache@v4
+        with:
+          path: ~/.npm
+          key: ${{ runner.os }}-node-v${{ matrix.node-version }}-${{ hashFiles('**/package.json') }}
+          restore-keys: |
+            ${{ runner.os }}-node-v${{ matrix.node-version }}-
+      - name: Install dependencies
+        run: yarn install --dev
+      - name: Run syntax linter
+        run: yarn cs
+
+  test-unit:
+    runs-on: ubuntu-latest
+    name: 'Check unit tests for Node.js v${{ matrix.node-version }}'
+    strategy:
+      fail-fast: false
+      matrix:
+        node-version: ['20', '21']
+    steps:
+      - uses: actions/setup-node@v3
+        with:
+          node-version: '${{ matrix.node-version }}'
+      - uses: actions/checkout@v4
+      - name: 'Cache node_modules'
+        uses: actions/cache@v4
+        with:
+          path: ~/.npm
+          key: ${{ runner.os }}-node-v${{ matrix.node-version }}-${{ hashFiles('**/package.json') }}
+          restore-keys: |
+            ${{ runner.os }}-node-v${{ matrix.node-version }}-
+      - name: Install dependencies
+        run: yarn install --dev
+      - name: Run syntax linter
+        run: yarn test:unit
+
+  test-feature:
+    runs-on: ubuntu-latest
+    name: 'Check feature tests for Node.js v${{ matrix.node-version }}'
+    strategy:
+      fail-fast: false
+      matrix:
+        node-version: ['20', '21']
+    steps:
+      - uses: actions/setup-node@v3
+        with:
+          node-version: '${{ matrix.node-version }}'
+      - uses: actions/checkout@v4
+      - name: 'Cache node_modules'
+        uses: actions/cache@v4
+        with:
+          path: ~/.npm
+          key: ${{ runner.os }}-node-v${{ matrix.node-version }}-${{ hashFiles('**/package.json') }}
+          restore-keys: |
+            ${{ runner.os }}-node-v${{ matrix.node-version }}-
+      - name: Install dependencies
+        run: yarn install --dev
+      - name: Run syntax linter
+        run: yarn test:feature
diff --git a/.github/workflows/ci-unit-test.yml b/.github/workflows/ci-unit-test.yml
deleted file mode 100644
index 277432d..0000000
--- a/.github/workflows/ci-unit-test.yml
+++ /dev/null
@@ -1,31 +0,0 @@
-name: Unit Test
-
-on:
-  - push
-  - fork
-  - pull_request
-
-jobs:
-  unit-test:
-    runs-on: ubuntu-latest
-    name: 'Running unit tests for Node.js v${{ matrix.node-version }}'
-    strategy:
-      fail-fast: false
-      matrix:
-        node-version: ['19']
-    steps:
-      - uses: actions/setup-node@v3
-        with:
-          node-version: '${{ matrix.node-version }}'
-      - uses: actions/checkout@v3
-      - name: 'Cache node_modules'
-        uses: actions/cache@v3
-        with:
-          path: ~/.npm
-          key: ${{ runner.os }}-node-v${{ matrix.node-version }}-${{ hashFiles('**/package.json') }}
-          restore-keys: |
-            ${{ runner.os }}-node-v${{ matrix.node-version }}-
-      - name: Install dependencies
-        run: yarn install --dev
-      - name: Run unit tests
-        run: yarn run test:unit
diff --git a/.github/workflows/ci-yml-lint.yml b/.github/workflows/ci-yml-lint.yml
deleted file mode 100755
index 5f6eadd..0000000
--- a/.github/workflows/ci-yml-lint.yml
+++ /dev/null
@@ -1,16 +0,0 @@
-name: YML lint
-
-on:
-  - push
-  - fork
-  - pull_request
-
-jobs:
-  yml-lint:
-    runs-on: ubuntu-latest
-    name: 'YML lint'
-    steps:
-      - uses: actions/checkout@v3
-      - run: docker pull cytopia/yamllint
-      - run: docker run --rm -t -v $(pwd):/data cytopia/yamllint .
-        shell: bash
diff --git a/TODO.md b/TODO.md
deleted file mode 100644
index 16fa63e..0000000
--- a/TODO.md
+++ /dev/null
@@ -1,7 +0,0 @@
-# Todo
-
-- Check build process
-- Build locally
-- Integrate library locally
-- Fix build process, if required
-- Build single file?
diff --git a/package.json b/package.json
index 8fe62c5..918f995 100644
--- a/package.json
+++ b/package.json
@@ -3,7 +3,7 @@
   "version": "0.0.38",
   "type": "module",
   "engines": {
-    "node": ">= 19.0"
+    "node": ">= 20.0"
   },
   "main": "dist/EmberNexus.js",
   "types": "dist/EmberNexus.d.ts",
diff --git a/.markdownlintrc b/test/.markdownlintrc
similarity index 100%
rename from .markdownlintrc
rename to test/.markdownlintrc
diff --git a/.yamllint b/test/.yamllint
similarity index 100%
rename from .yamllint
rename to test/.yamllint