diff --git a/.env.example b/.env.example
new file mode 100644
index 0000000..02b386c
--- /dev/null
+++ b/.env.example
@@ -0,0 +1,3 @@
+# The connection string for the PostgreSQL database
+# Format: postgresql://username:password@hostname:port/database_name?schema=public
+DATABASE_URL="postgresql://username:password@localhost:5432/mydb?schema=public"