chore: update

exm/fib/dune

@@ -0,0 +1,17 @@
+(env
+ (dev
+  (flags
+   (:standard -w -a))))
+
+(rule
+ (targets exm_fib.ml fib.ml fib.zci)
+ (deps
+  (:zl fib.zls)
+  (package zelus))
+ (action
+  (run zeluc -s main -o exm_fib %{zl})))
+
+(executable
+ (name exm_fib)
+ (public_name exm_fib)
+ (libraries zelus))

exm/fib/fib.zls

@@ -0,0 +1,7 @@
+
+let node fib () = n where
+  rec n = 0 -> pre (1 -> (pre n) + n)
+
+let node main () =
+  let f = fib () in
+  print_int f; print_newline ()