diff --git a/.gitea/workflows/build-arm64.yml b/.gitea/workflows/build-arm64.yml
new file mode 100644
index 0000000..ed053f4
--- /dev/null
+++ b/.gitea/workflows/build-arm64.yml
@@ -0,0 +1,39 @@
+name: Build Ground Station
+
+on:
+  push:
+    branches:
+      - main
+  workflow_dispatch:
+
+jobs:
+  build:
+    runs-on: groundstation-build
+    timeout-minutes: 30
+    env:
+      CGO_ENABLED: "0"
+      GOOS: linux
+      GOARCH: arm64
+
+    steps:
+      - name: Checkout source
+        uses: actions/checkout@v4
+
+      - name: Test and build arm64 binary
+        shell: bash
+        run: |
+          set -euo pipefail
+          go test ./...
+          go vet ./...
+          mkdir -p dist
+          go build -trimpath -ldflags='-s -w' -o dist/groundstation-linux-arm64 ./cmd/groundstation
+          tar -C dist -czf dist/groundstation-linux-arm64.tar.gz groundstation-linux-arm64
+          sha256sum dist/groundstation-linux-arm64.tar.gz > dist/groundstation-linux-arm64.tar.gz.sha256
+          sha256sum dist/groundstation-linux-arm64
+
+      - name: Upload arm64 artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: groundstation-linux-arm64-${{ github.sha }}
+          retention-days: 30
+          path: dist/*
diff --git a/ci/Dockerfile b/ci/Dockerfile
new file mode 100644
index 0000000..e4381c7
--- /dev/null
+++ b/ci/Dockerfile
@@ -0,0 +1,7 @@
+FROM golang:1.27-bookworm
+
+RUN apt-get update \
+ && apt-get install -y --no-install-recommends nodejs git ca-certificates \
+ && rm -rf /var/lib/apt/lists/*
+
+WORKDIR /workspace