diff --git a/.github/workflows/docker-build-push.yml b/.github/workflows/docker-build-push.yml
index 59b1a6c..0d6cdfb 100644
--- a/.github/workflows/docker-build-push.yml
+++ b/.github/workflows/docker-build-push.yml
@@ -70,7 +70,10 @@ jobs:
         with:
           context: .
           push: true
-          platforms: linux/amd64,linux/arm64
+          # arm64 temporarily disabled: it builds under QEMU emulation, which is slow
+          # and flaky for the heavy dependency tree. Re-enable by restoring:
+          #   platforms: linux/amd64,linux/arm64
+          platforms: linux/amd64
           tags: ${{ steps.meta.outputs.tags }}
           labels: ${{ steps.meta.outputs.labels }}
           cache-from: type=gha,scope=${{ github.event.repository.name }}-docker
diff --git a/Dockerfile b/Dockerfile
index 0750ec7..e3e83d9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -10,14 +10,20 @@ ENV YARN_CACHE_FOLDER=/usr/local/share/.cache/yarn/$TARGETARCH
 COPY package.json yarn.lock ./
 COPY .npmrc* ./
 
+# --network-timeout: the arm64 leg builds under QEMU emulation where TLS/IO are
+# slow enough that large tarballs (viem, @x402/paywall's wallet deps) blow past
+# yarn's 30s default and fail with ESOCKETTIMEDOUT.
 RUN --mount=type=cache,target=/usr/local/share/.cache/yarn/$TARGETARCH,sharing=locked \
-    corepack enable && yarn install --frozen-lockfile
+    corepack enable && yarn install --frozen-lockfile --network-timeout 600000
 
 COPY . .
 RUN yarn build
 
-# Remove devDependencies — native addons for production deps are already compiled
-RUN yarn install --frozen-lockfile --production --ignore-scripts
+# Remove devDependencies — native addons for production deps are already compiled.
+# Same cache mount as the full install so this resolves from the warm cache
+# instead of re-downloading everything over the network.
+RUN --mount=type=cache,target=/usr/local/share/.cache/yarn/$TARGETARCH,sharing=locked \
+    yarn install --frozen-lockfile --production --ignore-scripts --network-timeout 600000
 
 # Production stage
 FROM node:22-slim