diff --git a/base.nix b/base.nix
index 9650d4d..b1bdf2e 100644
--- a/base.nix
+++ b/base.nix
@@ -35,6 +35,7 @@
 
   environment.systemPackages = with pkgs; [
     bottom
+    diffr
     eza
     file
     git
@@ -44,6 +45,7 @@
     iotop
     lm_sensors
     nix-output-monitor
+    nixfmt
     p7zip
     python3
     ripgrep