diff --git a/.gitea/workflows/ci.yml b/.gitea/workflows/ci.yml
new file mode 100644
index 0000000..e206bdf
--- /dev/null
+++ b/.gitea/workflows/ci.yml
@@ -0,0 +1,19 @@
+name: CI
+on:
+  - push
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    container: catthehacker/ubuntu:act-latest
+    steps:
+      - uses: "https://github.com/actions/checkout@v3"
+      - name: Set up Python
+        uses: "https://github.com/actions/setup-python@v4"
+        with:
+          python-version: "3.11"
+      - name: Build
+        run: ./resize.py
+      - name: Upload
+        run: ./upload.py
+      - run: env
diff --git a/resize.py b/resize.py
old mode 100644
new mode 100755
index 3920bca..b503b31
--- a/resize.py
+++ b/resize.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 import requests
 from cairosvg import svg2png
 from pathlib import Path
diff --git a/upload.py b/upload.py
old mode 100644
new mode 100755
index 5afed22..470cd48
--- a/upload.py
+++ b/upload.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 import requests
 from pathlib import Path
 from resize import OUTPUT_DIR