cupboard

Clojure's a decent choice for writing a cross-platform UI application, using Swing. Java+Swing sucks, but Clojure+Swing works pretty well. I wrote a dependency graph library, dgraph, which significantly reduces the amount of boilerplate required to keep UI state in sync. http://github.com/gcv/dgraph I also wrote an embedded database library for Clojure, based on Berkeley DB. http://github.com/gcv/cupboard Which specific features make Clojure a good choice? Interactive development and macros.

Active: Cupboard (http://github.com/gcv/cupboard), an embedded database for Clojure. I wrote and open-sourced it, I guess that's about as active as it gets. :) Patcher: Samba. I work with it extensively, so I look at its code all the time. Found a bug once. :) All joking aside, Samba is a really nice piece of work IMO, and a great example of clear, understandable, and maintainable C. One-off: Apache/Jakarta Slide. That project died, and good riddance. It had some of the worst code I've ever seen: designed by architecture astronauts who never met a "design pattern" they didn't like, and it sported exponential-time algorithms for things like adding entries to ACLs. I had to hack it extensively just to make it barely usable. Thinking of Slide makes me want to go shower. Curious: Git. Want to look more closely at it, but don't have the time.

There is a Berkeley DB wrapper for Clojure. I haven't tried it yet, but it looks like the nicest Clojure persistence library I've seen so far. http://github.com/gcv/cupboard