diff --git a/.github/workflows/build-dev-version.yml b/.github/workflows/build-dev-version.yml
new file mode 100644
index 0000000..9c1c998
--- /dev/null
+++ b/.github/workflows/build-dev-version.yml
@@ -0,0 +1,41 @@
+name: Build Dev Version Extension
+
+on: [pull_request, push]
+
+jobs:
+
+  build-dev-extension:
+    runs-on: ubuntu-latest 
+    # Customise for extension
+    env:
+      EXT_NAME: codehighlighter2-Dev
+      EXT_DIR: codehighlighter/
+    
+    steps:
+
+      - name: Step 1 - Get repo
+        uses: actions/checkout@v2
+
+      - name: Step 2 - Enable development framework scripts
+        run: |
+          sed -i "s/<!-- //" ${{env.EXT_DIR}}META-INF/manifest.xml
+          # cat ${{env.EXT_DIR}}META-INF/manifest.xml
+          # echo
+ 
+      - name: Step 3 - Update to dev version
+        run: |
+          sed -i '/<version value/ s/"\/>/-Dev"\/>/' ${{env.EXT_DIR}}description.xml
+          # cat ${{env.EXT_DIR}}description.xml
+          # echo
+          
+      - name: Step 4 - Build repo
+        uses: vimtor/action-zip@v1
+        with:
+          files: ${{env.EXT_DIR}}
+          dest: ${{env.EXT_NAME}}.oxt
+          
+      - name: Step 5 - Upload dev version
+        uses: actions/upload-artifact@v2
+        with: 
+          name: ${{env.EXT_NAME}} - Extension in Zip file
+          path: ${{env.EXT_NAME}}.oxt
diff --git a/.github/workflows/build-extension.yml b/.github/workflows/build-extension.yml
new file mode 100644
index 0000000..99ad27e
--- /dev/null
+++ b/.github/workflows/build-extension.yml
@@ -0,0 +1,31 @@
+name: Build Extension
+
+on: [pull_request, push]
+
+jobs:
+
+  build-extension:
+    runs-on: ubuntu-latest 
+    # Customise for extension
+    env:
+      EXT_NAME: codehighlighter2
+      EXT_DIR: codehighlighter/
+    
+    steps:
+
+      - name: Step 1 - Get repo
+        uses: actions/checkout@v2
+
+      - name: Step 2 - Build repo
+        uses: vimtor/action-zip@v1
+        with:
+          files: ${{env.EXT_DIR}}
+          dest: ${{env.EXT_NAME}}.oxt
+
+      - name: Step 3 - Add extension to repo
+        run: |
+          git config user.name github-actions
+          git config user.email github-actions@github.com
+          git add ${{env.EXT_NAME}}.oxt
+          git commit -m "generated"
+          git push
diff --git a/codehighlighter2.oxt b/codehighlighter2.oxt
index d6bf88e..40277a5 100644
Binary files a/codehighlighter2.oxt and b/codehighlighter2.oxt differ