Update (2008-03-12): Riposte has been renamed Thoth to avoid a trademark conflict. This post has been edited accordingly. Sorry for the confusion.
Aphyr asked for some technical details about Thoth, so here they are.
One of the lovely things about Ramaze, the young (but rapidly maturing) Ruby web framework I used to build Thoth, is that it provides lots of nice features to help you get things done quickly and cleanly, yet it does so without dictating that you build your application a particular way. In fact, it’s so modular and so customizable that it’ll happily allow you to use just about any template engine or ORM you prefer.
I initially chose DataMapper as my ORM layer, largely (I confess) due to its pretty website. Unfortunately, it turns out you can’t judge an ORM by its cover. I quickly became frustrated with the lack of documentation, and when the source code itself proved difficult to understand due to a severe lack of useful comments, I decided to drop it in favor of Sequel, which has much better documentation and a more mature (and better-commented) codebase. So far I’ve been very happy with that choice.
I chose Erubis as my template engine primarily due to its maturity and speed. Ezamar, Ramaze’s native (and default) template engine, was also appealing, but it can’t compete with Erubis in the performance department. In addition, Ezamar evaluates its templates as Ruby strings in order to use Ruby’s native string interpolation features. This means that # characters must be escaped when displaying user-supplied content to prevent the user from executing arbitrary Ruby code like "#{File.read('/etc/passwd')}". Ramaze now includes a helper method to do this, but at the time it didn’t, which was a factor in my decision to use Erubis.
Since Ramaze is still young, the documentation isn’t quite as complete as I would have liked. However, the source code is well-commented and very clean, and when I had learned everything I could from the documentation on the Ramaze wiki, I found that it wasn’t hard at all to figure things out by poking through the source. On the few occasions when even the source didn’t answer all my questions, manveru and the other folks in #ramaze were happy to help.
Thoth is now feature complete and ready for release. I’m just waiting on Ramaze 0.3.6 (which contains a few features Thoth uses) before I push it out the door. In the meantime, if you’d like to try it out, you can follow these instructions to install a nightly build of Ramaze and the latest Thoth code. Let me know what you think.