(rule
  (targets hash_host.ml)
  (enabled_if (= %{profile} dev))
  (action (run cp hash_prod/hash_localhost.ml hash_host.ml)))

(rule
  (targets hash_host.ml)
  (enabled_if (<> %{profile} dev))
  (action (run cp hash_prod/hash_blog.ml hash_host.ml)))

(library
 (name blog)
 (libraries 
   brr
   brr.note
   elements
   )
 (preprocess (pps ppx_hash))

 
 )