diff --git a/.github/workflows/ci-workflow.yml b/.github/workflows/ci-workflow.yml
index a88e64f..417a1e4 100644
--- a/.github/workflows/ci-workflow.yml
+++ b/.github/workflows/ci-workflow.yml
@@ -3,12 +3,45 @@ name: Compilation & tests
 on: [push, pull_request]
 
 jobs:
-  job_build_application:
+  job_build_application_with_reusable_workflow:
     name: Build application using the reusable workflow
     uses: LedgerHQ/ledger-app-workflows/.github/workflows/reusable_build.yml@v1
     with:
       upload_app_binaries_artifact: "compiled_app_binaries"
 
+  job_build_nano_debug:
+    name: Build application for NanoS+, X, Stax, Flex
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        include:
+          - SDK: "$NANOX_SDK"
+            artifact: ergo-app-debug-nanox
+          - SDK: "$NANOSP_SDK"
+            artifact: ergo-app-debug-nanosp
+          - SDK: "$STAX_SDK"
+            artifact: ergo-app-debug-stax
+          - SDK: "$FLEX_SDK"
+            artifact: ergo-app-debug-flex
+
+    container:
+      image: ghcr.io/ledgerhq/ledger-app-builder/ledger-app-builder-lite:latest
+
+    steps:
+      - name: Clone
+        uses: actions/checkout@v4
+
+      - name: Build
+        run: |
+          git config --global --add safe.directory "$GITHUB_WORKSPACE"
+          make BOLOS_SDK=${{ matrix.SDK }} DEBUG=1
+
+      - name: Upload app binary
+        uses: actions/upload-artifact@v4
+        with:
+          name: ${{ matrix.artifact }}
+          path: bin
+
   job_unit_test:
     name: Unit tests
     runs-on: ubuntu-latest
@@ -114,7 +147,7 @@ jobs:
           #- model: stax
           #- model: flex
     
-    needs: job_build_application
+    needs: job_build_nano_debug
     runs-on: ubuntu-latest
 
     container: