Please offer a web service and web interface for test usage and demo in a similar way Language Tool has done this. Their demo usage web interface can be found here:
and example usage of their web service here:
Usage of these must of course be throttled.
Benefits of offering this are live demonstration of spell checking for all supported languages and to have a reference implementation for testing for the latest stable software and latest stable dictionaries. Within the limitation of the server, these interface and service can also provided spell checking to software and users which don't have hunspell installed, such as certain mobile applications.