OCaml ppx to include a binary blob from a file as a string. Writing [%blob "filename"] will replace the string with the contents of the file at compile time. This allows the inclusion of arbitary, possibly compressed, data, without the need to respect OCaml's lexical conventions.
The filename can be relative to either the source file where [%blob] appears, or relative to the current working directory. If both files exist, the former takes precedence.