add feishin music player

platforms/home-manager/modules/nmasur/presets/programs/feishin.nix

@@ -0,0 +1,19 @@
+{
+  config,
+  pkgs,
+  lib,
+  ...
+}:
+
+let
+  cfg = config.nmasur.presets.programs.feishin;
+in
+
+{
+
+  options.nmasur.presets.programs.feishin.enable = lib.mkEnableOption "Feishin music player";
+
+  config = lib.mkIf cfg.enable {
+    home.packages = [ pkgs.feishin ];
+  };
+}