diff --git a/repro/build_in_container.sh b/repro/build_in_container.sh
index 24a76ea..f38df93 100755
--- a/repro/build_in_container.sh
+++ b/repro/build_in_container.sh
@@ -30,6 +30,9 @@ echo "== Environment =="
 echo "TAG=${TAG}"
 echo "GRADLE_USER_HOME=${GRADLE_USER_HOME:-}"
 echo "PUB_CACHE=${PUB_CACHE:-}"
+echo "REPRO_TARGET_PLATFORM=${REPRO_TARGET_PLATFORM:-android-arm64}"
+echo "REPRO_SPLIT_PER_ABI=${REPRO_SPLIT_PER_ABI:-1}"
+echo "REPRO_ABI=${REPRO_ABI:-arm64-v8a}"
 
 echo "== Tool versions =="
 java -version
@@ -84,14 +87,25 @@ if [ -n "${GRADLE_USER_HOME:-}" ]; then
   } > "${GRADLE_USER_HOME}/gradle.properties"
 fi
 
-if [ "${REPRO_SPLIT_PER_ABI:-0}" = "1" ]; then
-  echo "Building with --split-per-abi (hard mode)"
-  flutter build apk --release --split-per-abi --no-pub
-  APK_PATH="$(ls -1 build/app/outputs/flutter-apk/*arm64-v8a*release*.apk | head -n 1)"
-  OUT_APK="${OUT_DIR}/app-${SOURCE_DATE_EPOCH}-${TAG}-arm64-v8a-release.apk"
+TARGET_PLATFORM="${REPRO_TARGET_PLATFORM:-android-arm64}"
+ABI_NAME="${REPRO_ABI:-arm64-v8a}"
+
+if [ "${REPRO_SPLIT_PER_ABI:-1}" = "1" ]; then
+  echo "Building with --split-per-abi (arm64 default)"
+  if [ -n "${TARGET_PLATFORM}" ]; then
+    flutter build apk --release --split-per-abi --target-platform "${TARGET_PLATFORM}" --no-pub
+  else
+    flutter build apk --release --split-per-abi --no-pub
+  fi
+  APK_PATH="$(ls -1 build/app/outputs/flutter-apk/*"${ABI_NAME}"*release*.apk | head -n 1)"
+  OUT_APK="${OUT_DIR}/app-${SOURCE_DATE_EPOCH}-${TAG}-${ABI_NAME}-release.apk"
 else
   echo "Building single APK (default)"
-  flutter build apk --release --no-pub
+  if [ -n "${TARGET_PLATFORM}" ]; then
+    flutter build apk --release --target-platform "${TARGET_PLATFORM}" --no-pub
+  else
+    flutter build apk --release --no-pub
+  fi
   APK_PATH="$(ls -1 build/app/outputs/flutter-apk/*release*.apk | head -n 1)"
   OUT_APK="${OUT_DIR}/app-${SOURCE_DATE_EPOCH}-${TAG}-release.apk"
 fi
diff --git a/repro/prove_repro.sh b/repro/prove_repro.sh
index 11ca81d..c8607cb 100755
--- a/repro/prove_repro.sh
+++ b/repro/prove_repro.sh
@@ -53,7 +53,9 @@ echo "Docker platform: ${DOCKER_PLATFORM}"
 echo "Flutter: ${FLUTTER_VERSION}"
 echo "Flutter sha256: ${FLUTTER_SHA256}"
 echo "cmdline-tools sha256: ${CMDLINE_TOOLS_SHA256}"
-echo "split-per-abi: ${REPRO_SPLIT_PER_ABI:-0}"
+echo "split-per-abi: ${REPRO_SPLIT_PER_ABI:-1}"
+echo "target-platform: ${REPRO_TARGET_PLATFORM:-android-arm64}"
+echo "abi: ${REPRO_ABI:-arm64-v8a}"
 
 echo "== Building Docker image =="
 docker build --platform "${DOCKER_PLATFORM}" \
@@ -101,7 +103,9 @@ run_one () {
     -e "GRADLE_USER_HOME=/work/gradle" \
     -e "GRADLE_OPTS=-Dorg.gradle.vfs.watch=false" \
     -e "PUB_CACHE=/work/pub-cache" \
-    -e "REPRO_SPLIT_PER_ABI=${REPRO_SPLIT_PER_ABI:-0}" \
+    -e "REPRO_SPLIT_PER_ABI=${REPRO_SPLIT_PER_ABI:-1}" \
+    -e "REPRO_TARGET_PLATFORM=${REPRO_TARGET_PLATFORM:-android-arm64}" \
+    -e "REPRO_ABI=${REPRO_ABI:-arm64-v8a}" \
     -v "${ROOT_DIR}:/repo:ro" \
     -v "${OUT_DIR}:/out:rw" \
     "${cache_mounts[@]}" \