Host your own Amazon S3
Park Place is an Amazon S3 clone in Ruby minus the SOAP support. It is amazing how little amount of code is required to achieve what S3 does.
Another interesting aspect of Park Place is that it uses Camping microframework. Camping is similar to Rails in the sense that it is a web framework that utilize the MVC design pattern. It is small web framework that weighs less than 4k! It is described as "a little white blood cell in the vein of Rails" on [Camping's][camp] wiki. You can see all the code in the framework in one page of your browser.
You can actually migrate from Camping to Rails fairly easily. That got me thinking, maybe [Shoechicken][shoechicken] should use Camping instead of Rails to start with. We can then migrate to Rails as the need arises.
