Is there a way to detect which platform we are in it, inside .spacemacs file?

I'm using spacemacs and I want to declare different paths for org-mode according to the platform that I'm inside it.

For example, if I'm in Linux, I want the path be ~/orgs but if I was in windows the path should be D:\orgs\.

Is there a variable to check the current platform?

One of the solutions(Thanks to @dalanicolai and @milochadam in the gitter website of spacemacs for all of the helps) is that You declare your condition inside user-init () for example, I declared two global variables: snippet_path and org_path and they will get different values depends on the platform(Linux/windows):

(defun dotspacemacs/user-init ()
;; ... other stuff

(if (or (equal system-type 'cygwin) (equal system-type 'windows-nt) (equal system-type 'ms-dos))
    ;; if we are in windows
      (progn
        (setq snippet_path "e:/home/snippets")
        (setq org_path "d:/org-mode/todo.org")
      )
    ;; else if (we are in linux)
      (progn
        (setq snippet_path "/home/ghost/spacemacs/snippets")
        (setq org_path "d:/org-mode/todo.org")
      )
  )

;; ... other stuff
)

Now we can use these two variables everywhere we like, for example inside our layer configs:

(auto-completion :variables                      
                  auto-completion-private-snippets-directory snippet_path
)