diff --git a/configuration.nix b/configuration.nix
index ca5a7ff..171b3d1 100644
--- a/configuration.nix
+++ b/configuration.nix
@@ -8,6 +8,9 @@
       ./hardware-configuration.nix
     ];
 
+  # use flakes
+  nix.settings.experimental-features = [ "nix-command" "flakes" ];
+
   # Use the systemd-boot EFI boot loader.
   boot.loader.systemd-boot.enable = true;
   boot.loader.efi.canTouchEfiVariables = true;
@@ -60,6 +63,7 @@
   services.displayManager.defaultSession = "none+i3";
   programs.i3lock.enable = true;
   environment.pathsToLink = [ "/libexec" ];
+  environment.variables.EDITOR = "vim";
 
   # enable sound
   services.pipewire = {