diff --git a/.gitea/workflows/on_push.yaml b/.gitea/workflows/on_push.yaml
index 88fe85e..5f32946 100644
--- a/.gitea/workflows/on_push.yaml
+++ b/.gitea/workflows/on_push.yaml
@@ -21,8 +21,8 @@ jobs:
       run: pio run -e ESP32_INA233
     - name: Run PlatformIO build for INA226
       run: pio run -e ESP32_INA226
-    - name: look at the output
-      run: ls -lah .pio/build/ESP32_INA233/ .pio/build/ESP32_INA226/
+    - name: Run PlatformIO build for SPIFFS (same in both platforms, so only one build is necessary)
+      run: pio run --target buildfs -e ESP32_INA233
     - name: Upload firmware binary for INA233
       run: |
         VERSION=$(sed -n 's/#define current_software_version Version{[[:space:]]*\([0-9]\+\),[[:space:]]*\([0-9]\+\),[[:space:]]*\([0-9]\+\)}/\1.\2.\3/p' src/global_data/defines.h)
@@ -42,3 +42,13 @@ jobs:
           -H "Content-Type: application/octet-stream" \
           --data-binary @.pio/build/ESP32_INA226/firmware.bin \
           https://iot.tobiasmaier.me/firmware/waterlevel/INA226/${VERSION}
+
+    - name: Upload SPIFFS binary
+      run: |
+        VERSION=$(cat data/version)
+        echo "Extracted version: $VERSION"
+
+        curl -X PUT \
+          -H "Content-Type: application/octet-stream" \
+          --data-binary @.pio/build/ESP32_INA233/spiffs.bin \
+          https://iot.tobiasmaier.me/filesystem/waterlevel/generic/${VERSION}
diff --git a/data/version b/data/version
new file mode 100644
index 0000000..56a6051
--- /dev/null
+++ b/data/version
@@ -0,0 +1 @@
+1
\ No newline at end of file