Jalapeno is basically a watchdog which observes a directory, monitores changes in the observed directory (as example, new file, file changes, file is removed) and forwards those changes to a destination directory.
As I'm often working with a designer, who shares me the assets of our apps in a Dropbox folder, I observe this folder and copy every change to my app's directory. With this method I can be sure that I always use the latest assets he pushed into the Dropbox folder.
Actually I've no idea why I used node.js to build it, but I think I just wanted to try something new.
nmp install watch
node jalapeno.js <absolute_path_to_observe> <absolute_path_to_dest_directory>
As jalapeno only supports files in a root folder and don't support folder hierachies at the moment, it's the logical next step to implement it.
Other things which will show up sooner or later:
Jalapeno is under MIT.