diff --git a/home/linux/base/development.nix b/home/linux/base/development.nix
index 660c97a2..b28e8852 100644
--- a/home/linux/base/development.nix
+++ b/home/linux/base/development.nix
@@ -23,9 +23,9 @@
     };
 
     direnv = {
-    enable = true;
-    nix-direnv.enable = true;
-    enableZshIntegration = true;
+      enable = true;
+      nix-direnv.enable = true;
+      enableZshIntegration = true;
     };
   };
 
diff --git a/home/linux/base/system-tools.nix b/home/linux/base/system-tools.nix
index ae9af3bc..7b7a7859 100644
--- a/home/linux/base/system-tools.nix
+++ b/home/linux/base/system-tools.nix
@@ -17,9 +17,9 @@
     libnotify
 
     # system call monitoring
-    strace
+    strace  # system call monitoring
     ltrace  # library call monitoring
-    lsof
+    lsof    # list open files
 
     # system tools
     ethtool