Use modules folder

hosts/desktop.nix

@@ -1,7 +1,7 @@
 { config, pkgs, lib, ... }:
 
 let
-  theme = import ../theme;
+  theme = import ../modules/theme;
 in
 {
   services = {
@@ -15,7 +15,7 @@ in
             enable = true;
             theme = theme.gtkTheme pkgs;
           };
-          background = ../wallpapers/${theme.wallpaper};
+          background = ../modules/wallpapers/${theme.wallpaper};
         };
         defaultSession = "none+i3";
       };
@@ -54,7 +54,7 @@ in
       mplus-outline-fonts.osdnRelease
       noto-fonts
       (nerdfonts.override { fonts = [ "FiraCode" ]; }) # required for icons
-      (pkgs.callPackage ../twemoji.nix {})
+      (pkgs.callPackage ../modules/twemoji {})
     ];
   };
 }

hosts/home.nix

@@ -1,25 +1,25 @@
 { config, pkgs, user, ... }:
 
 let
-  theme = import ../theme;
+  theme = import ../modules/theme;
 in
 {
   imports = [
-    ../neovim
-    ../ranger.nix
-    ../fcitx5
-    ../picom.nix
-    ../i3.nix
-    ../polybar
-    ../rofi
-    ../git.nix
-    ../terminal.nix
-    ../startpage
-    ../firefox.nix
-    ../emacs
+    ../modules/emacs
+    ../modules/fcitx5
+    ../modules/firefox
+    ../modules/git
+    ../modules/i3
+    ../modules/neovim
+    ../modules/picom
+    ../modules/polybar
+    ../modules/ranger
+    ../modules/rofi
+    ../modules/startpage
+    ../modules/terminal
   ];
 
-  home.file."./.background-image".source = ../wallpapers/${theme.wallpaper};
+  home.file."./.background-image".source = ../modules/wallpapers/${theme.wallpaper};
 
   programs.home-manager.enable = true;