diff --git a/.github/workflows/main.yml b/.github/workflows/main.yml
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+# SPDX-FileCopyrightText: : 2021-2024 The PyPSA-Eur Authors
+#
+# SPDX-License-Identifier: CC0-1.0
+
+name: CI
+
+# Caching method based on and described by:
+# epassaro (2021): https://dev.to/epassaro/caching-anaconda-environments-in-github-actions-5hde
+# and code in GitHub repo: https://github.com/epassaro/cache-conda-envs
+
+on:
+  push:
+    branches:
+    - master
+  pull_request:
+    branches:
+    - master
+  schedule:
+  - cron: "0 5 * * TUE"
+
+env:
+  DATA_CACHE_NUMBER: 2
+
+jobs:
+  build:
+
+    strategy:
+      fail-fast: false
+      max-parallel: 3
+      matrix:
+        os:
+        - ubuntu-latest
+        - macos-latest
+        - windows-latest
+        inhouse:
+        - stable
+        - master
+        exclude:
+        - os: macos-latest
+          inhouse: master
+        - os: windows-latest
+          inhouse: master
+    runs-on: ${{ matrix.os }}
+
+    defaults:
+      run:
+        shell: bash -l {0}
+
+    steps:
+    - uses: actions/checkout@v3
+
+    - name: Setup secrets
+      run: |
+        echo -ne "url: ${CDSAPI_URL}\nkey: ${CDSAPI_TOKEN}\n" > ~/.cdsapirc
+
+    - name: Setup micromamba
+      uses: mamba-org/setup-micromamba@v1
+      with:
+        micromamba-version: latest
+        environment-file: envs/environment.yaml
+        log-level: debug
+        init-shell: bash
+        cache-environment: true
+        cache-downloads: true
+
+    - name: Install inhouse packages
+      run: |
+        pip install git+https://github.com/PyPSA/atlite.git@master git+https://github.com/PyPSA/powerplantmatching.git@master git+https://github.com/PyPSA/linopy.git@master
+      if: ${{ matrix.inhouse }} == 'master'
+
+    - name: Set cache dates
+      run: |
+        echo "WEEK=$(date +'%Y%U')" >> $GITHUB_ENV
+
+    - name: Cache data and cutouts folders
+      uses: actions/cache@v3
+      with:
+        path: |
+          data
+          cutouts
+        key: data-cutouts-${{ env.WEEK }}-${{ env.DATA_CACHE_NUMBER }}
+
+    - name: Test snakemake workflow
+      run: ./test.sh
+
+    - name: Upload artifacts
+      uses: actions/upload-artifact@v4.3.0
+      with:
+        name: resources-results
+        path: |
+          resources
+          results
+        if-no-files-found: warn
+        retention-days: 1
+      if: matrix.os == 'ubuntu' && matrix.inhouse == 'stable'