I’ve moved away from this implementation for a much lighter approach that doesn’t need a Proxy Server:
The difference:
StashSync vs StashMovies
| StashSync | StashMovies | |
|---|---|---|
| Approach | .strm files + HTTP proxy |
Symbolic links directly to files |
| Requires StashProxy |  Yes |
 No |
| Direct play (4K) | Desktop only | All clients |
| TMDB metadata | Automatic |
Manual / NFO only |
| Setup complexity | Higher | Lower |