[TeMPOraL]

New DSLs/notations aren't conceptually different or more difficult than different libraries with differing APIs. In fact, each time you're coding to an API of a library, you are coding to a DSL - the API is the language. Writing real DSLs via code transformators/generators (e.g. macros in Lisp) just removes the noise caused by the mismatch between the API and the language syntax, making things potentially cleaner once you understand the API.

Documentation is still crucial, whether you're dealing with a library or a DSL.