diff --git a/config/sxhkd/sxhkdrc b/config/sxhkd/sxhkdrc
index f20575ee..c54e2020 100644
--- a/config/sxhkd/sxhkdrc
+++ b/config/sxhkd/sxhkdrc
@@ -18,9 +18,12 @@ super + Return
 ctrl + super + Return
 	xst
 
+# Open a disposable, floating terminal window, for quick shell commands.
 super + grave
 	scratch
 
+# Open a disposable scratch buffer in a floating Emacs window, to run arbitrary
+# code or quickly note something down.
 super + shift + grave
 	emacsclient -e '(open-scratch-frame)'
 
diff --git a/hosts/shiro/hardware-configuration.nix b/hosts/shiro/hardware-configuration.nix
index d27402eb..91c483e5 100644
--- a/hosts/shiro/hardware-configuration.nix
+++ b/hosts/shiro/hardware-configuration.nix
@@ -16,8 +16,8 @@
     extraModulePackages = [ ];
     # HACK Disables fixes for spectre, meltdown, L1TF and a number of CPU
     #      vulnerabilities. This is not a good idea for mission critical or
-    #      server/headless builds, but on my lonely home system I prioritize raw
-    #      performance over security.  The gains are minor.
+    #      server/headless builds, but Kuro isn't either. I'll prioritize raw
+    #      performance over security here, though the gains are minor.
     kernelParams = [ "mitigations=off" ];
   };
 
diff --git a/modules/desktop/browsers/qutebrowser.nix b/modules/desktop/browsers/qutebrowser.nix
index 0d6e4f0b..36d4dda2 100644
--- a/modules/desktop/browsers/qutebrowser.nix
+++ b/modules/desktop/browsers/qutebrowser.nix
@@ -28,6 +28,8 @@ in {
         exec = ''${pkg}/bin/qutebrowser ":open -p"'';
         categories = "Network";
       })
+      # For Brave adblock in qutebrowser, which is significantly better than the
+      # built-in host blocking. Works on youtube and crunchyroll ads!
       python39Packages.adblock
     ];