((wrap (vau root_env (quote)
((wrap (vau (let1)
(let1 lambda (vau se (p b1) (wrap (eval (array vau p b1) se)))
(let1 current-env (vau de () de)
(let1 cons (lambda (h t) (concat (array h) t))
(let1 Y (lambda (f3)
    ((lambda (x1) (x1 x1))
     (lambda (x2) (f3 (lambda (& y) (lapply (x2 x2) y))))))
(let1 vY (lambda (f)
    ((lambda (x3) (x3 x3))
     (lambda (x4) (f (vau de1 (& y) (vapply (x4 x4) y de1))))))
(let1 let (vY (lambda (recurse) (vau de2 (vs b) (cond (= (len vs) 0) (eval b de2)
                                                     true           (vapply let1 (array (idx vs 0) (idx vs 1) (array recurse (slice vs 2 -1) b)) de2)))))
 (let (
         ; Some helper hex literals
         xF 15
         xF0 240
         xFF 255
         xFF00 65280
         xFFFF 65535
         xFFFF0000 4294901760

         ; nibble to hex digit
         nibble_to_hexstr(lambda (n)
            (cond (= n 15) "f"
                  (= n 14) "e"
                  (= n 13) "d"
                  (= n 12) "c"
                  (= n 11) "b"
                  (= n 10) "a"
                  true (str n))
         )
         ; char to hex str
         char_to_hexstr (lambda (c)
            (concat 
                (nibble_to_hexstr (>> (band c xF0) 4)) 
                (nibble_to_hexstr (band c xF)))
         )
         ; short to hex str
         short_to_hexstr (lambda (s)
            (concat
                (char_to_hexstr (>> (band s xFF00) 8)) 
                (char_to_hexstr (band s xFF)))
         )
         ; 32 bit int to hex string helper
         int_to_hexstr (lambda (i)
            (str 
            (concat
                (short_to_hexstr (>> (band i xFFFF0000) 16)) 
                (short_to_hexstr (band i xFFFF)))
            )
         )
                
         monad  (array 'write  1 "enter int to get hex string: " (vau (written code)
                  (array 'read 0 60 (vau (num code)
                    (array 'write 1 (concat (int_to_hexstr (read-string num)) "\n") (vau (written code)
                            (array 'exit 0)
                     ))))))
 ) monad)
; end of all lets
))))))
; impl of let1
)) (vau de (s v b) (eval (array (array wrap (array vau (array s) b)) v) de)))
; impl of quote
)) (vau (x5) x5))