Shimmie 2
A danbooru-style image board, designed to be easier to install, run, and extend.
This is probably my most popular project, with 80 contributors, hundreds of installations, and thousands of users online at once.
Downloads
The Shimmie Testbed
Shish's personal gallery, where new features are tested
The Mishimmie
A gallery for Katawa Shoujo fanart, with a very nice theme and some code modifications
Ponibooru (NSFW)
An image dump for My Little Pony fans
Rule34 (NSFW)
The biggest known Shimmie installation, averaging 3000 users online at any time