diff --git a/config.py b/config.py
index e251c29..d1c4bbf 100644
--- a/config.py
+++ b/config.py
@@ -1,8 +1,11 @@
 from dynaconf import Dynaconf
 
+# The user can overwrite existing variables with either:
+# - creating environment variables starting with `KB_` such as `KB_DB_NAME`; or
+# - create a `kb_settings.toml` and add the variables they want
 settings = Dynaconf(
     envvar_prefix="KB",
-    settings_files=["settings.toml", ".secrets.toml"],
+    settings_files=["settings.toml", ".secrets.toml", "kb_settings.toml"],
 )
 
 # `envvar_prefix` = export envvars with `export DYNACONF_FOO=bar`.
diff --git a/settings.toml b/settings.toml
index 1a6e8b3..452f9b3 100644
--- a/settings.toml
+++ b/settings.toml
@@ -1,4 +1,4 @@
-default_db_name = "kanban.db"
+db_name = "kanban.db"
 task__title_max_length = 50
 category__name_max_length = 50
 statuses = ["To-do", "In progress", "Review", "Done"]
diff --git a/src/app/app.py b/src/app/app.py
index 51446f7..5d20260 100644
--- a/src/app/app.py
+++ b/src/app/app.py
@@ -22,7 +22,7 @@ def create_app() -> Typer:
     def main(
         filename: Annotated[
             str, Option("-f", "--filename", help="File name")
-        ] = settings.default_db_name,
+        ] = settings.db_name,
     ) -> None:
         """Simple Kanban management in the command line"""
         # Local import to prevent circular imports