add comments on hardware

home/enoko.nix

@@ -1,3 +1,4 @@
+# enoko is my framework 13-inch AMD laptop, running nixos
 { inputs, lib, pkgs, ... }: {
   imports = [
     ./global.nix

home/yukari.nix

@@ -1,3 +1,5 @@
+# yukari is an arch-based (for now) distro running in Windows under WSL
+# as such, it does not have or need a graphical shell
 { inputs, lib, pkgs, ... }: {
   # nothing here yet...
 }