Add kitty, obs, and scripts skeleton code

Also refactors some flake.nix code to not use dictionaries

services/scripts/default.nix

@@ -0,0 +1,10 @@
+{ config, pkgs, ... }:
+
+let
+  select = import ./select.nix { inherit pkgs; };
+in
+{
+  home.packages = [
+    select
+  ];
+}

services/scripts/select.nix

@@ -0,0 +1,15 @@
+{ pkgs }:
+
+pkgs.writeShellApplication {
+  name = "select";
+
+  runtimeInputs = [ fzf rofi ];
+
+  text = ''
+    if [ ${PPID} -ne 1 ]; then
+      echo -e $1 | fzf
+    else
+      echo -e $1 | rofi -dmenu -p $2
+    fi
+  '';
+}