Seed YOLO training font locally

scripts/train_operator_yolo_detector.sh

@@ -80,6 +80,25 @@ import os
 import shutil
 from pathlib import Path
 
+
+def seed_ultralytics_font() -> None:
+    font_candidates = [
+        Path("/usr/share/fonts/truetype/dejavu/DejaVuSans.ttf"),
+        Path("/usr/share/fonts/truetype/liberation2/LiberationSans-Regular.ttf"),
+        Path("/usr/share/fonts/truetype/freefont/FreeSans.ttf"),
+    ]
+    source_font = next((font for font in font_candidates if font.exists()), None)
+    if source_font is None:
+        return
+    config_root = Path(os.environ.get("YOLO_CONFIG_DIR", str(Path.home() / ".config")))
+    target_font = config_root / "Ultralytics" / "Arial.ttf"
+    target_font.parent.mkdir(parents=True, exist_ok=True)
+    if not target_font.exists():
+        shutil.copy2(source_font, target_font)
+
+
+seed_ultralytics_font()
+
 from ultralytics import YOLO
 
 dataset_yaml = Path(os.environ["DATASET_YAML"])