Add dmenu_mpv

Signed-off-by: Oliver Davies <oliver@oliverdavies.uk>

modules/dmenu-mpv.nix

@@ -0,0 +1,24 @@
+{
+  flake.modules.homeManager.gui =
+    { pkgs, ... }:
+    {
+      home.packages = [
+        (pkgs.writeShellApplication {
+          name = "dmenu_mpv";
+
+          text = ''
+            selected="$(find "$HOME/Videos" -type f | dmenu -l 15)"
+
+            if [[ -n "$selected" ]]; then
+              mpv --speed=1.5 "$selected" >/dev/null 2>&1
+            fi
+          '';
+
+          runtimeInputs = with pkgs; [
+            dmenu
+            mpv
+          ];
+        })
+      ];
+    };
+}