Ervell
Front-end Are.na client, built using Artsy's Ezel. Also, made possible by Artsy's very generous decision to open source their front-end client. Many patterns (also bits of code, probably) adopted from Force. Thanks y'all.
The general idea here is something minimal, utilitarian, unobtrusive and adaptible to many different situations. We try to make use of re-usable components and views as often as possible.