add initial beet setup, if you can call it that

nix/home/programs/beets/default.nix

@@ -0,0 +1,22 @@
+{ pkgs, ... }:
+{
+  environment.systemPackages = with pkgs; [ beets ];
+
+  # If using home-manager, we could the beets settings in a more in-nix way. As
+  # it is, here's the YAML that's currently on the NAS. If being serious, we
+  # would want to fill this in with interpolated values to be machine-agnostic
+  #
+  # plugins: spotify convert missing
+  # directory: /storage/Music
+  #
+  # convert:
+  #   auto: no
+  #   dest: /storage/Music
+  #
+  # import:
+  #   resume: yes
+  #   copy: yes
+  #   write: yes
+  #   incremental: yes
+  #   incremental_skip_later: no
+}