persisting in postgres

config/dev.exs

@@ -1,5 +1,14 @@
 import Config
 
+config :elixir_ai, ElixirAi.Repo,
+  username: "elixir_ai",
+  password: "elixir_ai",
+  hostname: "localhost",
+  database: "elixir_ai_dev",
+  stacktrace: true,
+  show_sensitive_data_on_connection_error: true,
+  pool_size: 10
+
 # For development, we disable any cache and enable
 # debugging and code reloading.
 #