diff --git a/main.go b/main.go
index a7ca7d1..67e3d76 100644
--- a/main.go
+++ b/main.go
@@ -20,7 +20,7 @@ var ( // flags
 	FlagSourceDir               = envvars.String("SOURCE_PATH", "/video")
 	FlagTargetDir               = envvars.String("TARGET_PATH", "/audio")
 	FlagCacheFile               = envvars.String("CACHE_FILE", "/hashes.bin")
-	FlagExcludeFiles            = envvars.StringSlice("EXCLUDE_FILES", ":", []string{".songs"})
+	FlagExcludeFiles            = envvars.StringSlice("EXCLUDE_FILES", ":", []string{".songs", ".stversions"})
 	FlagUpdateCacheFileInterval = envvars.Duration("UPDATE_CACHE_FILE_INTERVAL", 10*time.Second)
 )
 
@@ -68,6 +68,11 @@ func main() {
 	filesByGroup := channel.FlatMap(groupedFiles, func(key string, _ struct{}) string { return key })
 	filteredFiles := channel.Filter(filesByGroup, Or(Not(Exists), And(SymlinkFilesOnly, VideosOnly)))
 
+	filteredFiles = channel.MapSuccessive(filteredFiles, func(s string) string {
+		fmt.Println("DEBUG", s)
+		return s
+	})
+
 	for file := range filteredFiles {
 		if err := TranscodeFile(file); err != nil {
 			fmt.Fprintln(os.Stderr, fmt.Errorf("could not transcode file '%s': %w", file, err))
diff --git a/watch_dir.go b/watch_dir.go
index 5b57e49..117fe26 100644
--- a/watch_dir.go
+++ b/watch_dir.go
@@ -63,6 +63,8 @@ func WatchDirectory(ctx context.Context, path string, op ...fsnotify.Op) (<-chan
 			}
 		}
 
+		fmt.Println("DEBUG", "done providing existing files")
+
 		for {
 			select {
 			case event, ok := <-watcher.Events: