diff --git a/.github/codechecks.yml b/.github/codechecks.yml
new file mode 100644
index 00000000..5f7b4eed
--- /dev/null
+++ b/.github/codechecks.yml
@@ -0,0 +1,8 @@
+settings:
+  # https://github.com/codechecks/monorepo/blob/4ccc8bbaab1586c0ef265f234f0a275fd40b38f8/packages/client/src/speculativeBranchSelection.ts#L73
+  branches: ['v2']
+checks:
+  - name: typecov
+    options:
+      strict: true
+      atLeast: 95
diff --git a/.github/workflows/c#.yml b/.github/workflows/c#.yml
new file mode 100644
index 00000000..78bf2eef
--- /dev/null
+++ b/.github/workflows/c#.yml
@@ -0,0 +1,22 @@
+name: c#
+on:
+  push:
+    #paths: ['c#/**']
+defaults:
+  run:
+    working-directory: ./c#
+jobs:
+  cs:
+    name: c#
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@main
+      - uses: actions/setup-dotnet@main
+        with:
+          dotnet-version: 6
+          cache: true
+          cache-dependency-path: ./*/packages.lock.json
+      - name: restore
+        run: dotnet restore
+      - name: build
+        run: dotnet build --configuration Debug
diff --git a/.github/workflows/fe.yml b/.github/workflows/fe.yml
new file mode 100644
index 00000000..ea696923
--- /dev/null
+++ b/.github/workflows/fe.yml
@@ -0,0 +1,33 @@
+name: fe
+on:
+  push:
+    #paths: ['fe/**']
+defaults:
+  run:
+    working-directory: ./fe
+jobs:
+  fe:
+    name: fe
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@main
+      - uses: actions/setup-node@main
+        with:
+          node-version: lts
+          cache: yarn
+          cache-dependency-path: ./yarn.lock
+      - name: install
+        run: yarn install --immutable
+      - name: tsc
+        run: yarn run vue-tsc
+      - name: eslint
+        if: ${{ !cancelled() }}
+        run: yarn run eslint src
+      - name: codechecks
+        if: ${{ !cancelled() }}
+        # contains CVE that triggers Dependabot
+        run: |
+          yarn add -D typecov @codechecks/client
+          yarn run codechecks ../.github/codechecks.yml
+        env:
+          CC_SECRET: ${{ secrets.CC_SECRET }}