Local martime history

I've started working on a project on local maritime history. The project covers several hundred years, and many themes including maritime industries, ships, notable people, ethnic groups, real estate, etc.

I came across the omeka-powered site Histories of the National Mall (http://mallhistory.org/), and I see some custom plugins were developed. I was wondering if those customizations were available to copy & modify, and also how much effort was involved in developing that site.

Thanks all

A lot of work went into the creation of Histories of the National Mall, both in content and code. We wrote a Guide which describes some of the technical processes. All of the code is available to look at on GitHub, but would need to be adapted to new uses rather than simply forked/cloned.

Thanks so much. That Guide is so useful.