diff --git a/Makefile b/Makefile
index 96f1ee2..64b535d 100644
--- a/Makefile
+++ b/Makefile
@@ -14,3 +14,7 @@ reset: stop
 	@echo "Removing volumes..."
 	docker volume rm -f $(APP_DB_VOLUME) $(DW_DB_VOLUME)
 	@echo "Volumes removed. You can now start fresh with 'make start'"
+
+run-rust:
+	cargo build --manifest-path rust/Cargo.toml 
+	cargo run --manifest-path rust/Cargo.toml 
\ No newline at end of file
diff --git a/flake.nix b/flake.nix
index 8051303..f2affb2 100644
--- a/flake.nix
+++ b/flake.nix
@@ -21,8 +21,6 @@
           ];
 
           shellHook = ''
-            export DATABASE_URL="postgres://${POSTGRES_APP_USER}:${POSTGRES_APP_PASSWORD}@${POSTGRES_HOST}:${POSTGRES_APP_PORT}/${POSTGRES_APP_DB}"
-            export DW_DATABASE_URL="postgres://${POSTGRES_DW_USER}:${POSTGRES_DW_PASSWORD}@${POSTGRES_HOST}:${POSTGRES_DW_PORT}/${POSTGRES_DW_DB}"
             echo "✅ Rust + PostgreSQL dev env ready"
           '';
         };