My first module

home-manager/hosts/morty.nix

@@ -29,15 +29,6 @@ xkb_symbols "us-intl-winmax" {
     };
   };
 
-  home.packages = with pkgs; [
-    kdenlive
-    ffmpeg-full
-    frei0r
-    inkscape
-  ];
-  
-
-  home.file.".local/bin/create_conf".source = ./files/create_conf;
   imports = [
    ../qutebrowser
   ];

home-manager/kdenlive/default.nix

@@ -0,0 +1,19 @@
+{ pkgs, lib, config, ... }:
+with lib;
+let
+  cfg = config.modules.video.kdenlive;
+in
+{
+  options.modules.video.kdenlive = {
+    enable = mkEnableOption "enable Kdenlive video editor";
+  };
+  config = mkIf cfg.enable {
+    home.packages = with pkgs; [
+      kdenlive
+      ffmpeg-full
+      frei0r
+      inkscape
+    ];
+    home.file.".local/bin/create_conf".source = ./files/create_conf;
+  };
+}

hosts/morty/home.nix

@@ -0,0 +1,5 @@
+{ ... }: {
+  config.modules = {
+    video.kdenlive.enable = true;
+  };
+}

nixos/default.nix

@@ -72,7 +72,9 @@
       ];
 
       imports = [
+        ../hosts/${hostname}/home.nix
         ../home-manager/cli
+        ../home-manager/kdenlive/default.nix
       ] ++ (if hostConfig.desktop then 
         [
           ../home-manager/desktop