unikernel/duniverse/dune_/doc/reference/aliases/check.rst

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+@check
+======
+
+This alias corresponds to the set of targets necessary for development tools to
+work correctly. For example, it will build ``*.cmi``, ``*.cmt``, and ``*.cmti``
+files so that Merlin and ``ocaml-lsp-server`` can be used in the project.
+It is also useful in the development loop because it will catch compilation
+errors without executing expensive operations such as linking executables.
+
+.. seealso:: :doc:`ocaml-index` for a fast feedback loop that
+   also indexes the project.