diff --git a/.mokogitea/workflows/deploy-mokogitea.yml b/.mokogitea/workflows/deploy-mokogitea.yml
index 84e4583eee..72087ce74d 100644
--- a/.mokogitea/workflows/deploy-mokogitea.yml
+++ b/.mokogitea/workflows/deploy-mokogitea.yml
@@ -5,6 +5,9 @@
 name: Deploy MokoGitea
 
 on:
+  push:
+    branches:
+      - main
   workflow_dispatch:
     inputs:
       version:
@@ -36,11 +39,23 @@ jobs:
   deploy:
     runs-on: ubuntu-latest
     steps:
+      - name: Checkout source (for version detection)
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+
       - name: Determine settings
         id: config
         run: |
-          VERSION="${{ github.event.inputs.version }}"
-          ENV="${{ github.event.inputs.environment }}"
+          # On push to main, auto-deploy to production with git-derived version.
+          # On workflow_dispatch, use the provided inputs.
+          if [ "${{ github.event_name }}" = "push" ]; then
+            VERSION=$(git describe --tags --always 2>/dev/null || echo "dev-$(git rev-parse --short HEAD)")
+            ENV="production"
+          else
+            VERSION="${{ github.event.inputs.version }}"
+            ENV="${{ github.event.inputs.environment }}"
+          fi
 
           if [ "$ENV" = "production" ]; then
             echo "compose_dir=/opt/gitea" >> $GITHUB_OUTPUT
@@ -146,7 +161,7 @@ jobs:
           GITEA_TOKEN: ${{ secrets.MOKOGITEA_TOKEN }}
           TAG: ${{ steps.config.outputs.tag }}
           INSTANCE_URL: ${{ steps.config.outputs.instance_url }}
-          DEPLOY_ENV: ${{ github.event.inputs.environment }}
+          DEPLOY_ENV: ${{ github.event.inputs.environment || 'production' }}
         run: |
           # Only update updates.xml for production stable releases
           if [ "$DEPLOY_ENV" != "production" ]; then