diff --git a/.github/workflows/ci.yml b/.github/workflows/ci-build-publisher.yml
similarity index 74%
rename from .github/workflows/ci.yml
rename to .github/workflows/ci-build-publisher.yml
index b1ed6472..ce10f79a 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci-build-publisher.yml
@@ -1,14 +1,14 @@
-name: build
+name: build-publisher
 on:
   push:
     branches:
     tags:
     paths:
-      - '.github/workflows/ci.yml'
+      - '.github/workflows/ci-build-publisher.yml'
       - 'publisher/**'
   pull_request:
     paths:
-      - '.github/workflows/ci.yml'
+      - '.github/workflows/ci-build-publisher.yml'
       - 'publisher/**'
 
 jobs:
diff --git a/.github/workflows/ci-build-site.yml b/.github/workflows/ci-build-site.yml
new file mode 100644
index 00000000..8567e559
--- /dev/null
+++ b/.github/workflows/ci-build-site.yml
@@ -0,0 +1,36 @@
+name: build-site
+on:
+  push:
+    branches:
+    tags:
+    paths-ignore:
+      - 'publisher/**'
+      - 'updater/**'
+      - '.github/workflows/ci-build-publisher.yml'
+      - '.github/workflows/ci-build-updater.yml'
+      - '.github/workflows/ci-frontend-check.yml'
+      - '.github/workflows/ci-frontend-lint.yml'
+      - '.github/dependabot.yml'
+      - '.github/FUNDING.yml'
+  pull_request:
+    paths-ignore:
+      - 'publisher/**'
+      - 'updater/**'
+      - '.github/workflows/ci-build-publisher.yml'
+      - '.github/workflows/ci-build-updater.yml'
+      - '.github/workflows/ci-frontend-check.yml'
+      - '.github/workflows/ci-frontend-lint.yml'
+      - '.github/dependabot.yml'
+      - '.github/FUNDING.yml'
+
+jobs:
+  build:
+    name: build
+    runs-on: ubuntu-latest
+    steps:
+
+    - name: check out code
+      uses: actions/checkout@v4
+
+    - name: build site image
+      run: docker build -t radio-t/site .
diff --git a/.github/workflows/ci-build-updater.yml b/.github/workflows/ci-build-updater.yml
new file mode 100644
index 00000000..e19fae75
--- /dev/null
+++ b/.github/workflows/ci-build-updater.yml
@@ -0,0 +1,25 @@
+name: build-updater
+on:
+  push:
+    branches:
+    tags:
+    paths:
+      - '.github/workflows/ci-build-updater.yml'
+      - 'updater/**'
+  pull_request:
+    paths:
+      - '.github/workflows/ci-build-updater.yml'
+      - 'updater/**'
+
+jobs:
+  build:
+    name: build
+    runs-on: ubuntu-latest
+    steps:
+
+    - name: check out code
+      uses: actions/checkout@v4
+
+    - name: build updater image
+      run: docker build -t radio-t/updater .
+      working-directory: updater
diff --git a/.github/workflows/ci-frontend-lint.yml b/.github/workflows/ci-frontend-lint.yml
index 15fe91d4..e902aab9 100644
--- a/.github/workflows/ci-frontend-lint.yml
+++ b/.github/workflows/ci-frontend-lint.yml
@@ -5,10 +5,12 @@ on:
     branches:
     tags:
     paths:
+      - '.github/workflows/ci-frontend-lint.yml'
       - "hugo/**/*.jsx?"
       - "hugo/**/*.tsx?"
   pull_request:
     paths:
+      - '.github/workflows/ci-frontend-lint.yml'
       - "hugo/**/*.jsx?"
       - "hugo/**/*.tsx?"
 
@@ -17,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node: [14.15]
+        node: [14, 16]
 
     steps:
       - uses: actions/checkout@v4