From 6bd85f65abedc9b594e6ae2ab2ed75b51d6392dd Mon Sep 17 00:00:00 2001
From: Michael Herold <opensource@michaeljherold.com>
Date: Tue, 25 Aug 2026 14:44:54 -0500
Subject: [PATCH] Build for arm64 as well as amd64

When you want to use Understory on a Mac, you'd prefer to have the
container run in the default architecture rather than the translation
layer.

This change makes sure that the build system builds the container for
both ARM and x86 architectures.
---
 .github/workflows/docker.yml | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/.github/workflows/docker.yml b/.github/workflows/docker.yml
index bb4163f..43d8bb1 100644
--- a/.github/workflows/docker.yml
+++ b/.github/workflows/docker.yml
@@ -34,6 +34,9 @@ jobs:
       packages: write
     steps:
       - uses: actions/checkout@v4
+      - uses: docker/setup-qemu-action@v3
+        with:
+          platforms: arm64
       - uses: docker/setup-buildx-action@v3
       - uses: docker/login-action@v3
         with:
@@ -51,6 +54,7 @@ jobs:
       - uses: docker/build-push-action@v6
         with:
           context: .
+          platforms: linux/amd64,linux/arm64
           push: true
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}