Case insensitivity bite

gnommo/cli.py

@@ -1138,7 +1138,10 @@ def _sync_shared_videos_to_local(
     if local_json_path.exists():
         local_videos = _read_json(local_json_path)
 
-    _METADATA_FIELDS = ("duration", "has_audio")
+    # source_file is canonical from shared_assets/videos.json — repair it if a local
+    # entry drifted (e.g. an old import lowercased it to "outrovideo2.mov" while the
+    # real file is "OutroVideo2.mov"), which breaks the case-sensitive render rig.
+    _METADATA_FIELDS = ("duration", "has_audio", "source_file")
 
     added = []
     metadata_updated = []

gnommo/renderer.py

@@ -278,6 +278,28 @@ def render(plan: RenderPlan, output_path: Path, verbose: bool = False, log=None)
         )
 
 
+def _ci_resolve(path: Path) -> Path:
+    """Case-insensitive fallback for a file path.
+
+    If `path` doesn't exist but a sibling with the same name in a different case
+    does, return that sibling. macOS's default filesystem is case-INsensitive, so a
+    `source_file` whose stored case drifted from the real file (e.g. "outrovideo2.mov"
+    vs "OutroVideo2.mov") still resolves locally — but on the case-SENSITIVE Linux of
+    the render rig / WSL it would otherwise hard-fail with "not found". This makes the
+    two behave the same. Returns `path` unchanged if no match (caller handles absence).
+    """
+    if path.exists():
+        return path
+    parent = path.parent
+    if not parent.is_dir():
+        return path
+    target = path.name.lower()
+    for entry in parent.iterdir():
+        if entry.name.lower() == target:
+            return entry
+    return path
+
+
 def _resolve_video_path(
     videos_dir: Path,
     video_source: VideoSource,
@@ -326,6 +348,11 @@ def _resolve_video_path(
     else:
         resolved = source_path
 
+    # Tolerate case drift between the stored source_file and the real file — a no-op
+    # on macOS (case-insensitive) but the difference between working and "not found"
+    # on the case-sensitive render rig / WSL.
+    resolved = _ci_resolve(resolved)
+
     if not resolved.exists():
         # File not found anywhere — substitute PlaceholderVideo so FFmpeg doesn't crash
         placeholder = None