diff --git a/.gitea/workflows/deploy.yml b/.gitea/workflows/deploy.yml
new file mode 100644
index 0000000..9dbb662
--- /dev/null
+++ b/.gitea/workflows/deploy.yml
@@ -0,0 +1,85 @@
+name: Deploy to Hosting Server
+
+on:
+  workflow_dispatch:
+    inputs:
+      confirm:
+        description: 'Type DEPLOY to deploy this branch to the hosting server'
+        required: true
+        default: ''
+
+jobs:
+  deploy:
+    name: Manual deploy
+    runs-on: ubuntu-latest
+
+    if: ${{ github.event.inputs.confirm == 'DEPLOY' }}
+
+    env:
+      DEPLOY_HOST: ${{ secrets.DEPLOY_HOST }}
+      DEPLOY_PORT: ${{ secrets.DEPLOY_PORT }}
+      DEPLOY_USER: ${{ secrets.DEPLOY_USER }}
+      DEPLOY_PATH: ${{ secrets.DEPLOY_PATH }}
+      DEPLOY_SSH_KEY: ${{ secrets.DEPLOY_SSH_KEY }}
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup PHP
+        uses: shivammathur/setup-php@v2
+        with:
+          php-version: '8.2'
+          extensions: dom, gd, intl, mbstring, mysqli, zip
+          coverage: none
+
+      - name: Validate Composer config
+        run: composer validate --no-check-publish --strict
+
+      - name: Install production dependencies
+        run: composer install --no-dev --no-interaction --prefer-dist --no-progress --optimize-autoloader
+
+      - name: Configure SSH
+        run: |
+          test -n "${DEPLOY_HOST}"
+          test -n "${DEPLOY_USER}"
+          test -n "${DEPLOY_PATH}"
+          test -n "${DEPLOY_SSH_KEY}"
+
+          mkdir -p ~/.ssh
+          chmod 700 ~/.ssh
+          printf '%s\n' "${DEPLOY_SSH_KEY}" > ~/.ssh/deploy_key
+          chmod 600 ~/.ssh/deploy_key
+
+          SSH_PORT="${DEPLOY_PORT:-22}"
+          ssh-keyscan -p "${SSH_PORT}" "${DEPLOY_HOST}" >> ~/.ssh/known_hosts
+
+      - name: Deploy files
+        run: |
+          SSH_PORT="${DEPLOY_PORT:-22}"
+
+          ssh -i ~/.ssh/deploy_key -p "${SSH_PORT}" "${DEPLOY_USER}@${DEPLOY_HOST}" \
+            "mkdir -p '${DEPLOY_PATH}' '${DEPLOY_PATH}/writable/cache' '${DEPLOY_PATH}/writable/logs' '${DEPLOY_PATH}/writable/session' '${DEPLOY_PATH}/writable/uploads' '${DEPLOY_PATH}/writable/debugbar'"
+
+          rsync -az --delete \
+            -e "ssh -i ~/.ssh/deploy_key -p ${SSH_PORT}" \
+            --exclude '.git/' \
+            --exclude '.gitea/' \
+            --exclude '.env' \
+            --exclude 'env' \
+            --exclude 'env.*' \
+            --exclude 'writable/cache/***' \
+            --exclude 'writable/logs/***' \
+            --exclude 'writable/session/***' \
+            --exclude 'writable/uploads/***' \
+            --exclude 'writable/debugbar/***' \
+            --exclude 'tests/' \
+            --exclude 'phpunit.xml*' \
+            ./ "${DEPLOY_USER}@${DEPLOY_HOST}:${DEPLOY_PATH}/"
+
+      - name: Finalize deployment
+        run: |
+          SSH_PORT="${DEPLOY_PORT:-22}"
+
+          ssh -i ~/.ssh/deploy_key -p "${SSH_PORT}" "${DEPLOY_USER}@${DEPLOY_HOST}" \
+            "cd '${DEPLOY_PATH}' && php spark cache:clear || true"
diff --git a/app/Views/slips/preview_list.php b/app/Views/slips/preview_list.php
index a9df9e0..83fc685 100644
--- a/app/Views/slips/preview_list.php
+++ b/app/Views/slips/preview_list.php
@@ -156,13 +156,20 @@ $chartLabels = array_map($formatDateKey, $dateOrder);
 
 <script>
 document.addEventListener('DOMContentLoaded', function() {
-    const ctx = document.getElementById('lateChart').getContext('2d');
-    
+    const lateChart = document.getElementById('lateChart');
+    if (!lateChart || typeof Chart === 'undefined') {
+        return;
+    }
+
     // PHP to JS data conversion
     const labels = <?= json_encode($chartLabels) ?>;
     const counts = <?= json_encode($chartData) ?>;
 
-    new Chart(ctx, {
+    if (!labels.length || !counts.length) {
+        return;
+    }
+
+    new Chart(lateChart.getContext('2d'), {
         type: 'bar',
         data: {
             labels: labels,