diff --git a/.github/workflows/terrarium_check.yaml b/.github/workflows/terrarium_check.yaml
new file mode 100644
index 000000000..bf4358523
--- /dev/null
+++ b/.github/workflows/terrarium_check.yaml
@@ -0,0 +1,46 @@
+name: terrarium_check
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
+  cancel-in-progress: true
+
+on:
+  pull_request:
+  workflow_dispatch:
+
+
+jobs:
+  pytest:
+    runs-on: [ self-hosted, linux ]
+    container:
+      image: "python:3.11.0"
+
+    strategy:
+      fail-fast: false
+      matrix:
+        value:
+          - bi_ci
+          - dl_repmanager
+    name: "🐊 ${{ matrix.value }}"
+    steps:
+      - name: 'Cleanup build folder'
+        run: |
+          rm -rf ./* || true
+          rm -rf ./.??* || true
+      - name: Checkout code
+        uses: actions/checkout@v4
+      - run: git config --global --add safe.directory /__w/${{ github.event.repository.name }}/${{ github.event.repository.name }}
+      - name: Setup common tools
+        run: pip install --no-input poetry pytest mypy
+      - name: Install dependencies
+        run: | 
+          cd "terrarium/${{ matrix.value }}"
+          pip install --no-input .
+      - name: Pytest
+        run: | 
+          cd "terrarium/${{ matrix.value }}"
+          pytest .
+      - name: Mypy
+        run: | 
+          cd "terrarium/${{ matrix.value }}"
+          mypy .
diff --git a/terrarium/bi_ci/bi_ci_tests/dummy_ext/test_placeholder.py b/terrarium/bi_ci/bi_ci_tests/dummy_ext/test_placeholder.py
deleted file mode 100644
index 10cf3ad0a..000000000
--- a/terrarium/bi_ci/bi_ci_tests/dummy_ext/test_placeholder.py
+++ /dev/null
@@ -1,2 +0,0 @@
-def test_dummy():
-    pass
diff --git a/terrarium/bi_ci/bi_ci_tests/dummy_fat/test_placeholder.py b/terrarium/bi_ci/bi_ci_tests/dummy_fat/test_placeholder.py
deleted file mode 100644
index 10cf3ad0a..000000000
--- a/terrarium/bi_ci/bi_ci_tests/dummy_fat/test_placeholder.py
+++ /dev/null
@@ -1,2 +0,0 @@
-def test_dummy():
-    pass
diff --git a/terrarium/bi_ci/pyproject.toml b/terrarium/bi_ci/pyproject.toml
index 009371996..93fab7c5e 100644
--- a/terrarium/bi_ci/pyproject.toml
+++ b/terrarium/bi_ci/pyproject.toml
@@ -7,26 +7,7 @@ requires = [
 [datalens.meta.mypy]
 targets = ["bi_ci"]
 
-[datalens.pytest.ext_private]
-# just a placeholder to run at least one pytest
-root_dir = "bi_ci_tests/"
-target_path = "dummy_ext"
-labels = ["ext_private"]
-
-[datalens.pytest.ext_public]
-# just a placeholder to run at least one pytest
-root_dir = "bi_ci_tests/"
-target_path = "dummy_ext"
-labels = ["ext_public"]
-
-[datalens.pytest.fat]
-# just a placeholder to run at least one pytest
-root_dir = "bi_ci_tests/"
-target_path = "dummy_fat"
-labels = ["fat"]
-
 [datalens.pytest.unit]
-# just a placeholder to run at least one pytest
 root_dir = "bi_ci_tests/"
 target_path = "unit"
 
@@ -47,6 +28,7 @@ python = ">=3.10, <3.12"
 tomlkit = ">=0.11.8"
 clize = ">=5.0.0"
 poetry = ">=1.5.0"
+pyyaml = ">=6.0.1"
 
 [tool.poetry.scripts]
 detect-affected-packages = "bi_ci.detect_affected_packages:main"
@@ -60,7 +42,7 @@ execute-mypy-multi = "bi_ci.execute_mypy_multi:cmd"
 [tool.pytest.ini_options]
 minversion = "6.0"
 addopts = "-ra"
-testpaths = ["bi_ci_tests"]
+testpaths = ["bi_ci_tests/unit"]
 
 [tool.mypy]
 warn_unused_configs = true