diff --git a/sample.config.json b/sample.config.json
new file mode 100644
index 0000000..f906e6c
--- /dev/null
+++ b/sample.config.json
@@ -0,0 +1,16 @@
+{
+	"calibre_path": "./public/calibre",
+	"calibre_db_path": "./public/calibre/metadata.db",
+	"trust proxy": true,
+	"book_details_custom": [
+		{
+			"name": "a_lire",
+			"query": "SELECT custom_columns.name AS label, custom_column_2.value AS value FROM custom_column_2 LEFT OUTER JOIN custom_columns ON custom_columns.id = 2 WHERE custom_column_2.book = ?",
+			"type": "bool"
+		}, {
+			"name": "phy",
+			"query": "SELECT custom_columns.name AS label, custom_column_3.value AS value FROM custom_column_3 LEFT OUTER JOIN custom_columns ON custom_columns.id = 3 WHERE custom_column_3.book = ?",
+			"type": "bool"
+		}
+	]
+}