diff --git a/.project/designs/app/.gitignore b/.project/designs/app/.gitignore
new file mode 100644
index 00000000..58a87693
--- /dev/null
+++ b/.project/designs/app/.gitignore
@@ -0,0 +1,10 @@
+# Vite cache + build output (regenerable, not source).
+node_modules/
+.vite/
+dist/
+
+# Stray emitted JS — sources are .ts/.tsx; tsc must run with --noEmit.
+# These files broke the dev server's import resolution once already
+# (Vite picked .js over .tsx siblings). Keep them out of the tree.
+src/**/*.js
+src/**/*.js.map
diff --git a/.project/designs/app/tsconfig.json b/.project/designs/app/tsconfig.json
index e032bce2..6f455de7 100644
--- a/.project/designs/app/tsconfig.json
+++ b/.project/designs/app/tsconfig.json
@@ -11,6 +11,7 @@
     "noUnusedParameters": true,
     "noFallthroughCasesInSwitch": true,
     "skipLibCheck": true,
+    "noEmit": true,
     "resolveJsonModule": true,
     "baseUrl": ".",
     "paths": {
diff --git a/tools/audio-fetch-batch.sh b/tools/audio-fetch-batch.sh
index bd35083a..07dd5a2c 100755
--- a/tools/audio-fetch-batch.sh
+++ b/tools/audio-fetch-batch.sh
@@ -56,26 +56,62 @@ while IFS=$'\t' read -r output_path source_url licence attribution edits; do
     mkdir -p "$(dirname "$full_path")"
 
     stem="$(basename "$output_path" .ogg)"
-    src_ext="${source_url##*.}"
-    case "$src_ext" in
-        wav|ogg|mp3|flac) ;;
-        *) src_ext="bin" ;;
-    esac
-    staged="$STAGING/${stem}.${src_ext}"
 
-    # Convert github.com blob URLs to raw URLs automatically (still allow
-    # raw URLs and other hosts unchanged).
+    # Source URL may be one of:
+    #   1. direct file URL ending in .wav/.ogg/.mp3/.flac
+    #   2. github.com blob URL (auto-converted to raw)
+    #   3. ZIP archive with an inner path: "<zip_url>#<inner/path/inside.wav>"
     fetch_url="$source_url"
-    case "$source_url" in
+    inner_path=""
+    if [[ "$source_url" == *"#"* ]]; then
+        fetch_url="${source_url%%#*}"
+        inner_path="${source_url#*#}"
+    fi
+    case "$fetch_url" in
         https://github.com/*/blob/*)
-            fetch_url="$(echo "$source_url" | sed -e 's|github.com|raw.githubusercontent.com|' -e 's|/blob/|/|')"
+            fetch_url="$(echo "$fetch_url" | sed -e 's|github.com|raw.githubusercontent.com|' -e 's|/blob/|/|')"
             ;;
     esac
 
-    if ! curl -sfL -o "$staged" "$fetch_url"; then
-        echo "  ✗ download failed: $fetch_url" >&2
-        fail=$((fail + 1))
-        continue
+    if [ -n "$inner_path" ]; then
+        # ZIP path: cache the archive once per URL, extract a single
+        # member into staging.
+        zip_hash="$(printf '%s' "$fetch_url" | shasum | cut -c1-8)"
+        zip_cache="$STAGING/_zip_${zip_hash}.zip"
+        zip_extract_dir="$STAGING/_zip_${zip_hash}"
+        if [ ! -f "$zip_cache" ]; then
+            if ! curl -sfL -o "$zip_cache" "$fetch_url"; then
+                echo "  ✗ ZIP download failed: $fetch_url" >&2
+                fail=$((fail + 1))
+                continue
+            fi
+        fi
+        if [ ! -d "$zip_extract_dir" ]; then
+            mkdir -p "$zip_extract_dir"
+            if ! unzip -q -o "$zip_cache" -d "$zip_extract_dir"; then
+                echo "  ✗ ZIP extract failed: $zip_cache" >&2
+                fail=$((fail + 1))
+                continue
+            fi
+        fi
+        staged="$zip_extract_dir/$inner_path"
+        if [ ! -f "$staged" ]; then
+            echo "  ✗ ZIP missing inner file: $inner_path" >&2
+            fail=$((fail + 1))
+            continue
+        fi
+    else
+        src_ext="${fetch_url##*.}"
+        case "$src_ext" in
+            wav|ogg|mp3|flac) ;;
+            *) src_ext="bin" ;;
+        esac
+        staged="$STAGING/${stem}.${src_ext}"
+        if ! curl -sfL -o "$staged" "$fetch_url"; then
+            echo "  ✗ download failed: $fetch_url" >&2
+            fail=$((fail + 1))
+            continue
+        fi
     fi
 
     # loudnorm two-pass would be more accurate, but for SFX one-pass is fine