diff --git a/.gitignore b/.gitignore
index 48f81d3..6654b94 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,13 +4,27 @@ __pycache__/
 *.pyo
 .venv/
 venv/
+env/
+.env
+.env.*
+*.egg-info/
 
 # PyInstaller — carpeta de build intermedia (no necesaria)
 build/
+dist/
+*.spec
+
+# S-57 output files (large binary charts)
+*.000
 
 # Logs
 build_log.txt
+*.log
+
+# Large source documents (PDFs)
+*.pdf
 
 # OS
 .DS_Store
 Thumbs.db
+*.bak
diff --git a/.sync_aed30ff16c65.db b/.sync_aed30ff16c65.db
new file mode 100644
index 0000000..8de31c6
Binary files /dev/null and b/.sync_aed30ff16c65.db differ
diff --git a/check_s57.py b/check_s57.py
index d30ded1..35aa563 100644
--- a/check_s57.py
+++ b/check_s57.py
@@ -1,6 +1,7 @@
 import geopandas as gpd
 
-path = r"C:\Users\aerom\CO1CO01M.000"
+import sys as _sys
+path = _sys.argv[1] if len(_sys.argv) > 1 else "CO1CO01M.000"
 for layer in ["COALNE", "LNDARE", "LNDMRK", "M_COVR"]:
     try:
         gdf = gpd.read_file(path, layer=layer)