Gallery is a simple Sinatra app that sort of just fills a purpose for me- I have a big folder of images (with subdirs) that I needed to be able to link to and have slideshows. So Sinatra takes the params as a path and feeds the right information to the javascript in the template, and makes thumbnails if necessary.
If you'd like to use it, feel free. If you'd like to contribute, or have suggestions or requests, feel free to hit me up on twitter (@photomattmills).
(This is the BSD license)
Copyright (c) 2012 Matt Mills. All rights reserved.
Redistribution and use in source and binary forms are permitted provided that the above copyright notice and this paragraph are duplicated in all such forms and that any documentation, advertising materials, and other materials related to such distribution and use acknowledge that the software was developed by Matt Mills. Matt Mills' name may not be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.