Organise Home Manager modules

modules/home-manager/desktop/media/default.nix

@@ -0,0 +1,5 @@
+{
+  imports = [
+    ./mpv.nix
+  ];
+}

modules/home-manager/desktop/media/mpv.nix

@@ -0,0 +1,22 @@
+{ config, lib, ... }:
+
+with lib;
+
+let
+  cfg = config.homeManagerModules.desktop.media.mpv;
+in
+{
+  options.homeManagerModules.desktop.media.mpv.enable = mkEnableOption "Enable mpv";
+
+  config = mkIf cfg.enable {
+    programs.mpv = {
+      enable = true;
+
+      # https://github.com/mpv-player/mpv/blob/master/etc/input.conf
+      bindings = {
+        "DOWN" = "add volume -5";
+        "UP" = "add volume 5";
+      };
+    };
+  };
+}