leader-layer and commands (like space/doom emacs)

leader-layer.edn

{:des "Leader-key layer"
 :rules [
         :!leader-layer
         [:right_command :right_command nil {:alone [["leader-layer" 1][:noti :leader "leader-key"]]
                             :delayed {:invoked [["leader-layer" 0][:noti :leader]]}
                             :params {:delay 2000}}]

         :leader-layer
         [:s [["leader-layer-s" 1]["leader-layer" 0][:noti :leader "leader-key s"]]]
         [{:any :key_code} [["leader-layer" 0][:noti :leader]]]

         :leader-layer-s
         [:s [:!Cf ["leader-layer-s" 0][:noti :leader]]]
         [{:any :key_code} [["leader-layer-s" 0][:noti :leader]]]
         ]}

Hi DK, could you explain it. It worked) I wish more people new about this...
Could you explain the code by adding comments?
Could you also add more examples how you would use it and is there any way to refactor it? make it shorter and simpler?
There are a couple of thread where some people were looking for this feature. If you could try to use it in your use cases and maybe improve it(making shorter maybe). This is a really great thing and I am almost sure that nobody knows about it. So please consider making something out of it(an article or a longer config(maybe taking default features from spacemacs and converting them to this config and using it in vs code or intellij by converting sequence of keys into their(vs code or intellij) shortcut outputs)).
Whether you do it or not a big thank you from me:)