💚 fix platforms 2: electric boogaloo?

.github/workflows/build-publish.yaml

@@ -43,7 +43,8 @@ jobs:
       - name: 'Set target build platforms 📝'
         id: 'target-platforms'
         run: |
-          echo "target_platforms=linux/amd64,linux/${{ steps.qemu.outputs.platforms }}/v8" >> "$GITHUB_OUTPUT"
+          qemu_platforms="$(.github/workflows/scripts/convert-arch-to-platform.sh "${{ steps.qemu.outputs.platforms }}")"
+          echo "target_platforms=$qemu_platforms" >> "$GITHUB_OUTPUT"
 
       - name: 'Build container 🐳'
         id: 'build'

.github/workflows/scripts/convert-arch-to-platform.sh

@@ -0,0 +1,23 @@
+#!/usr/bin/env bash
+
+qemu_platforms=""
+
+for p in $(echo "$1" | tr ',' '\n'); do
+  v=""
+  case "$p" in
+    "linux/arm64")
+      v="$p/v8" ;;
+    # Skip platforms we don't need
+    "linux/386") ;;
+    *)
+      v="$p" ;;
+  esac
+
+  if [ -z "$qemu_platforms" ]; then
+    qemu_platforms="$v"
+  else
+    qemu_platforms="$qemu_platforms,$v"
+  fi
+done
+
+echo "$qemu_platforms"