diff --git a/.github/workflows/all-tests.yml b/.github/workflows/all-tests.yml
index 1c426ba11c..1f6660e015 100644
--- a/.github/workflows/all-tests.yml
+++ b/.github/workflows/all-tests.yml
@@ -36,9 +36,7 @@ jobs:
 
       - name: Get current hash (SHA) of the ephy_testing_data repo
         id: repo_hash
-        run: |
-          echo "dataset_hash=$(git ls-remote https://gin.g-node.org/NeuralEnsemble/ephy_testing_data.git HEAD | cut -f1)"
-          echo "dataset_hash=$(git ls-remote https://gin.g-node.org/NeuralEnsemble/ephy_testing_data.git HEAD | cut -f1)" >> $GITHUB_OUTPUT
+        run: echo "dataset_hash=$(git ls-remote https://gin.g-node.org/NeuralEnsemble/ephy_testing_data.git HEAD | cut -f1)" >> $GITHUB_OUTPUT
         shell: bash
       - name: Cache datasets
         id: cache-datasets
@@ -70,6 +68,41 @@ jobs:
           git config --global filter.annex.process "git-annex filter-process"  # recommended for efficiency
         shell: bash
 
+      - name: Get changed files
+        id: changed-files
+        uses: tj-actions/changed-files@v41
+
+      - name: Set environment variables based on changed files
+        run: |
+          declare -A changes
+          changes=(
+            ["pyproject.toml"]="CORE_CHANGED"
+            ["/core/"]="CORE_CHANGED"
+            ["/extractors/neoextractors/neobaseextractor.py"]="CORE_CHANGED"
+            ["/extractors/"]="EXTRACTORS_CHANGED"
+            ["plexon2"]="PLEXON2_CHANGED"
+            ["/preprocessing/"]="PREPROCESSING_CHANGED"
+            ["/postprocessing/"]="POSTPROCESSING_CHANGED"
+            ["/qualitymetrics/"]="QUALITYMETRICS_CHANGED"
+            ["/sorters/"]="SORTERS_CHANGED"
+            ["/sorters/external"]="SORTERS_EXTERNAL_CHANGED"
+            ["/sorters/internal"]="SORTERS_INTERNAL_CHANGED"
+            ["/comparison/"]="COMPARISON_CHANGED"
+            ["/curation/"]="CURATION_CHANGED"
+            ["/widgets/"]="WIDGETS_CHANGED"
+            ["/exporters/"]="EXPORTERS_CHANGED"
+            ["/sortingcomponents/"]="SORTINGCOMPONENTS_CHANGED"
+            ["/generation/"]="GENERATION_CHANGED"
+          )
+
+          for file in ${{ steps.changed-files.outputs.all_changed_files }}; do
+            for pattern in "${!changes[@]}"; do
+              if [[ $file == *$pattern* ]]; then
+                echo "${changes[$pattern]}=true" >> $GITHUB_ENV
+              fi
+            done
+          done
+
       - name: Set execute permissions on run_tests.sh
         run: chmod +x .github/run_tests.sh
         shell: bash
@@ -81,49 +114,61 @@ jobs:
       - name: Test extractors
         env:
           HDF5_PLUGIN_PATH: ${{ github.workspace }}/hdf5_plugin_path_maxwell
+        if: env.EXTRACTORS_CHANGED == 'true' || env.CORE_CHANGED == 'true'
         run: pytest -m "extractors"
         shell: bash
 
       - name: Test preprocessing
+        if: env.PREPROCESSING_CHANGED == 'true' || env.CORE_CHANGED == 'true'
         run: ./.github/run_tests.sh "preprocessing and not deepinterpolation" --no-virtual-env
         shell: bash
 
       - name: Test postprocessing
+        if: env.POSTPROCESSING_CHANGED == 'true' || env.CORE_CHANGED == 'true'
         run: ./.github/run_tests.sh postprocessing --no-virtual-env
         shell: bash
 
       - name: Test quality metrics
+        if: env.QUALITYMETRICS_CHANGED == 'true' || env.CORE_CHANGED == 'true'
         run: ./.github/run_tests.sh qualitymetrics --no-virtual-env
         shell: bash
 
       - name: Test comparison
+        if: env.COMPARISON_CHANGED == 'true' || env.GENERATION_CHANGED == 'true' || env.CORE_CHANGED == 'true'
         run: ./.github/run_tests.sh comparison --no-virtual-env
         shell: bash
 
       - name: Test core sorters
+        if: env.SORTERS_CHANGED == 'true' || env.CORE_CHANGED == 'true'
         run: ./.github/run_tests.sh sorters --no-virtual-env
         shell: bash
 
       - name: Test internal sorters
+        if: env.SORTERS_INTERNAL_CHANGED == 'true' || env.SORTINGCOMPONENTS_CHANGED == 'true' || env.CORE_CHANGED == 'true'
         run: ./.github/run_tests.sh sorters_internal --no-virtual-env
         shell: bash
 
       - name: Test curation
+        if: env.CURATION_CHANGED == 'true' || env.CORE_CHANGED == 'true'
         run: ./.github/run_tests.sh curation --no-virtual-env
         shell: bash
 
       - name: Test widgets
+        if: env.WIDGETS_CHANGED == 'true' || env.CORE_CHANGED == 'true' || env.QUALITYMETRICS_CHANGED == 'true' || env.PREPROCESSING_CHANGED == 'true'
         run: ./.github/run_tests.sh widgets --no-virtual-env
         shell: bash
 
       - name: Test exporters
+        if: env.EXPORTERS_CHANGED == 'true' || env.CORE_CHANGED == 'true' || env.WIDGETS_CHANGED == 'true'
         run: ./.github/run_tests.sh exporters --no-virtual-env
         shell: bash
 
       - name: Test sortingcomponents
+        if: env.SORTINGCOMPONENTS_CHANGED == 'true' || env.CORE_CHANGED == 'true'
         run: ./.github/run_tests.sh sortingcomponents --no-virtual-env
         shell: bash
 
       - name: Test generation
+        if: env.GENERATION_CHANGED == 'true' || env.CORE_CHANGED == 'true'
         run: ./.github/run_tests.sh generation --no-virtual-env
         shell: bash